===================================================================
@@ -297,6 +297,20 @@ tests-internal = \
test-srcs = \
tst-printf \
+ tst-printf-format-c \
+ tst-printf-format-char \
+ tst-printf-format-double \
+ tst-printf-format-int \
+ tst-printf-format-ldouble \
+ tst-printf-format-llong \
+ tst-printf-format-long \
+ tst-printf-format-s \
+ tst-printf-format-short \
+ tst-printf-format-uchar \
+ tst-printf-format-uint \
+ tst-printf-format-ullong \
+ tst-printf-format-ulong \
+ tst-printf-format-ushort \
tst-printfsz-islongdouble \
tst-unbputc \
# test-srcs
@@ -314,6 +328,20 @@ ifneq ($(PERL),no)
tests-special += \
$(objpfx)tst-printf-bz18872-mem.out \
$(objpfx)tst-printf-bz25691-mem.out \
+ $(objpfx)tst-printf-format-c.out \
+ $(objpfx)tst-printf-format-char.out \
+ $(objpfx)tst-printf-format-double.out \
+ $(objpfx)tst-printf-format-int.out \
+ $(objpfx)tst-printf-format-ldouble.out \
+ $(objpfx)tst-printf-format-llong.out \
+ $(objpfx)tst-printf-format-long.out \
+ $(objpfx)tst-printf-format-s.out \
+ $(objpfx)tst-printf-format-short.out \
+ $(objpfx)tst-printf-format-uchar.out \
+ $(objpfx)tst-printf-format-uint.out \
+ $(objpfx)tst-printf-format-ullong.out \
+ $(objpfx)tst-printf-format-ulong.out \
+ $(objpfx)tst-printf-format-ushort.out \
$(objpfx)tst-printf-fp-free-mem.out \
$(objpfx)tst-printf-fp-leak-mem.out \
$(objpfx)tst-vfprintf-width-prec-mem.out \
@@ -325,6 +353,34 @@ generated += \
tst-printf-bz18872.mtrace \
tst-printf-bz25691-mem.out \
tst-printf-bz25691.mtrace \
+ tst-printf-format-c.mtrace \
+ tst-printf-format-c.out \
+ tst-printf-format-char.mtrace \
+ tst-printf-format-char.out \
+ tst-printf-format-double.mtrace \
+ tst-printf-format-double.out \
+ tst-printf-format-int.mtrace \
+ tst-printf-format-int.out \
+ tst-printf-format-ldouble.mtrace \
+ tst-printf-format-ldouble.out \
+ tst-printf-format-llong.mtrace \
+ tst-printf-format-llong.out \
+ tst-printf-format-long.mtrace \
+ tst-printf-format-long.out \
+ tst-printf-format-s.mtrace \
+ tst-printf-format-s.out \
+ tst-printf-format-short.mtrace \
+ tst-printf-format-short.out \
+ tst-printf-format-uchar.mtrace \
+ tst-printf-format-uchar.out \
+ tst-printf-format-uint.mtrace \
+ tst-printf-format-uint.out \
+ tst-printf-format-ullong.mtrace \
+ tst-printf-format-ullong.out \
+ tst-printf-format-ulong.mtrace \
+ tst-printf-format-ulong.out \
+ tst-printf-format-ushort.mtrace \
+ tst-printf-format-ushort.out \
tst-printf-fp-free-mem.out \
tst-printf-fp-free.mtrace \
tst-printf-fp-leak-mem.out \
@@ -433,6 +489,20 @@ $(objpfx)tst-printf.out: tst-printf.sh $
$(SHELL) $< $(common-objpfx) '$(test-program-prefix)'; \
$(evaluate-test)
+# We can't split a quoted recipe line, so do it via an auxiliary variable.
+make-tst-printf-format-out = \
+ AWK='$(AWK)' \
+ $(BASH) $< $(common-objpfx) \
+ '$(run-program-prefix-before-env) \
+ $(run-program-env) \
+ MALLOC_TRACE=$(@:.out=.mtrace) \
+ LD_PRELOAD=$(common-objpfx)malloc/libc_malloc_debug.so \
+ $(run-program-prefix-after-env)'
+$(objpfx)tst-printf-format-%.out: \
+ tst-printf-format-%.sh $(objpfx)tst-printf-format-% tst-printf-format.awk
+ $(make-tst-printf-format-out) > $@; \
+ $(evaluate-test)
+
$(objpfx)tst-printfsz-islongdouble.out: \
tst-printfsz-islongdouble.sh $(objpfx)tst-printfsz-islongdouble
$(SHELL) $^ '$(test-program-prefix)' $@; \
===================================================================
@@ -0,0 +1,29 @@
+/* Test for formatted printf output for the 'c' conversion.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 3
+#define HUGE_WIDTH 4
+#define REF_FMT "c"
+#define REF_VAL(v) (v)
+typedef unsigned char type_t;
+static const type_t vals[] = { 0, 42, UCHAR_MAX };
+static const char length[] = "";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,32 @@
+#!/bin/bash
+# Testing of the 'c' printf conversion.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+echo Verifying c
+(set -o pipefail
+ ${test_program_prefix} ${common_objpfx}stdio-common/tst-printf-format-c c |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion c output error, first line:\n/") >&2 ||
+ exit 1
===================================================================
@@ -0,0 +1,31 @@
+/* Test for formatted printf output for signed char conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 3
+#define HUGE_WIDTH 5
+#define REF_FMT "i"
+#define REF_VAL(v) ((((v) & 0xff) ^ 0x80) - 0x80)
+typedef int type_t;
+static const type_t vals[] =
+ { SCHAR_MIN - 123, SCHAR_MIN - 1, SCHAR_MIN, -123, -1, 0, 1, 42, SCHAR_MAX,
+ SCHAR_MAX + 1, SCHAR_MAX + 42 };
+static const char length[] = "hh";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,39 @@
+#!/bin/bash
+# Testing of signed char printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=0
+
+for f in d i; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-char $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,33 @@
+/* Test for formatted printf output for double conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <float.h>
+#include <math.h>
+
+#define MID_WIDTH 20
+#define HUGE_WIDTH 320
+#define REF_FMT ".35e"
+#define REF_VAL(v) (v)
+#define PREC DBL_MANT_DIG
+typedef double type_t;
+static const type_t vals[] =
+ { -HUGE_VAL, -DBL_MAX, -DBL_MIN, copysign (0, -1), -NAN, NAN, 0, DBL_MIN,
+ DBL_MAX, HUGE_VAL };
+static const char length[] = "";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,72 @@
+#!/bin/bash
+# Testing of double printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+# For floating-point formats we need to use the bignum mode even if the
+# regular mode would do, because GAWK in the latter mode uses sprintf(3)
+# internally to process the conversion requested, so any bug in our code
+# would then be verified against itself, defeating the objective of doing
+# the verification against an independent implementation.
+AWK="${AWK:-awk} -M"
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="-1.79769313486231570814527423731704357e+308"
+val=$(echo "$ref" | $AWK '{ printf "%.35e\n", $1 }' 2>&1) &&
+ test "$val" = "$ref" && status=0
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+# Check for any additional conversions that AWK handles conditionally
+# according to its version and/or the environment it has been built in.
+# The 'A' and 'a' conversions are not suitable to use at this point, as
+# output produced by AWK is different apparently due to a subtlety in
+# rounding, so do not try them.
+declare -A conversion_disabled
+ref="-inf"
+for f in f F; do
+ conversion_disabled[$f]=true
+ val=$(echo "$ref" | $AWK '{ printf "%'$f'\n", $1 }' 2>&1) &&
+ test "${val^^}" = "${ref^^}" && unset conversion_disabled[$f]
+done
+
+for f in e E f F g G; do
+ if test "${conversion_disabled[$f]+set}" = set; then
+ echo Skipping $f
+ else
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-double $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+ fi
+done
+
+exit $status
===================================================================
@@ -0,0 +1,29 @@
+/* Test for formatted printf output for int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 8
+#define HUGE_WIDTH 15
+#define REF_FMT "i"
+#define REF_VAL(v) (v)
+typedef int type_t;
+static const type_t vals[] = { INT_MIN, -123, -1, 0, 1, 42, INT_MAX };
+static const char length[] = "";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Testing of int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="-2147483648"
+for AWK in "$AWK -M" "$AWK"; do
+ val=$(echo "$ref" | $AWK '{ printf "%d\n", $1 }' 2>&1) || continue
+ test "$val" = "$ref" && status=0 && break
+done
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+for f in d i; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-int $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,35 @@
+/* Test for formatted printf output for long double conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <float.h>
+#include <math.h>
+#include <support/test-driver.h>
+
+#define MID_WIDTH 20
+#define HUGE_WIDTH 4950
+#define REF_FMT ".35Le"
+#define REF_VAL(v) (v)
+#define PREC LDBL_MANT_DIG
+typedef long double type_t;
+static const type_t vals[] =
+ { -HUGE_VAL, -LDBL_MAX, -LDBL_MIN, copysign (0, -1), -NAN, NAN, 0, LDBL_MIN,
+ LDBL_MAX, HUGE_VAL };
+static const char length[] = "L";
+
+#define TIMEOUT (DEFAULT_TIMEOUT * 64)
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,72 @@
+#!/bin/bash
+# Testing of long double printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+# For floating-point formats we need to use the bignum mode even if the
+# regular mode would do, because GAWK in the latter mode uses sprintf(3)
+# internally to process the conversion requested, so any bug in our code
+# would then be verified against itself, defeating the objective of doing
+# the verification against an independent implementation.
+AWK="${AWK:-awk} -M"
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="-1.18973149535723176508575932662800702e+4932"
+val=$(echo "$ref" | $AWK '{ PREC=113; printf "%.35e\n", $1 }' 2>&1) &&
+ test "$val" = "$ref" && status=0
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+# Check for any additional conversions that AWK handles conditionally
+# according to its version and/or the environment it has been built in.
+# The 'A' and 'a' conversions are not suitable to use at this point, as
+# output produced by AWK is different apparently due to a subtlety in
+# rounding, so do not try them.
+declare -A conversion_disabled
+ref="-inf"
+for f in f F; do
+ conversion_disabled[$f]=true
+ val=$(echo "$ref" | $AWK '{ printf "%'$f'\n", $1 }' 2>&1) &&
+ test "${val^^}" = "${ref^^}" && unset conversion_disabled[$f]
+done
+
+for f in e E f F g G; do
+ if test "${conversion_disabled[$f]+set}" = set; then
+ echo Skipping $f
+ else
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-ldouble $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+ fi
+done
+
+exit $status
===================================================================
@@ -0,0 +1,29 @@
+/* Test for formatted printf output for long long int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 15
+#define HUGE_WIDTH 25
+#define REF_FMT "lli"
+#define REF_VAL(v) (v)
+typedef long long int type_t;
+static const type_t vals[] = { LLONG_MIN, -123, -1, 0, 1, 42, LLONG_MAX };
+static const char length[] = "ll";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Testing of long long int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="9223372036854775807"
+for AWK in "$AWK -M" "$AWK"; do
+ val=$(echo "$ref" | $AWK '{ printf "%d\n", $1 }' 2>&1) || continue
+ test "$val" = "$ref" && status=0 && break
+done
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+for f in d i; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-llong $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,29 @@
+/* Test for formatted printf output for long int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 15
+#define HUGE_WIDTH 25
+#define REF_FMT "li"
+#define REF_VAL(v) (v)
+typedef long int type_t;
+static const type_t vals[] = { LONG_MIN, -123, -1, 0, 1, 42, LONG_MAX };
+static const char length[] = "l";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Testing of long int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="9223372036854775807"
+for AWK in "$AWK -M" "$AWK"; do
+ val=$(echo "$ref" | $AWK '{ printf "%d\n", $1 }' 2>&1) || continue
+ test "$val" = "$ref" && status=0 && break
+done
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+for f in d i; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-long $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,30 @@
+/* Test for formatted printf output for the 's' conversion.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 5
+#define HUGE_WIDTH 10
+#define REF_FMT "s"
+#define REF_VAL(v) (v)
+typedef const char *type_t;
+static const type_t vals[] =
+ { "", "The", "quick", "brown fox", "jumps over the lazy dog" };
+static const char length[] = "";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,32 @@
+#!/bin/bash
+# Testing of the 's' printf conversion.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+echo Verifying s
+(set -o pipefail
+ ${test_program_prefix} ${common_objpfx}stdio-common/tst-printf-format-s s |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion s output error, first line:\n/") >&2 ||
+ exit 1
===================================================================
@@ -0,0 +1,31 @@
+/* Test for formatted printf output for short int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 4
+#define HUGE_WIDTH 7
+#define REF_FMT "i"
+#define REF_VAL(v) ((((v) & 0xffff) ^ 0x8000) - 0x8000)
+typedef int type_t;
+static const type_t vals[] =
+ { SHRT_MIN - 123, SHRT_MIN - 1, SHRT_MIN, -123, -1, 0, 1, 42, SHRT_MAX,
+ SHRT_MAX + 1, SHRT_MAX + 42 };
+static const char length[] = "h";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,39 @@
+#!/bin/bash
+# Testing of short int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=0
+
+for f in d i; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-short $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,370 @@
+/* Test skeleton for formatted printf output.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+/* The following definitions have to be supplied by the source including
+ this skeleton:
+
+ Macros:
+ MID_WIDTH Medium width/precision positive integer constant. Choose
+ such as to cause some, but not all the strings produced
+ to be truncated for the conversions handled.
+ HUGE_WIDTH Large width/precision positive integer constant. Choose
+ such as to cause none of the strings produced to be
+ truncated for the conversions handled.
+ REF_FMT Reference output format string. Use no flags and such
+ a precision and length modifier, where applicable, and
+ a conversion as to make sure the output produced allows
+ the original value to be reproduced.
+ REF_VAL(v) Reference value V transformation. For conversions with
+ a truncating length modifier define such as to reproduce
+ the truncation operation, otherwise let V pass through.
+ PREC [optional] Working precision positive integer constant.
+ Set to the number of binary digits in the significand for
+ the argument type handled; usually for floating-point
+ conversions only, but it may be required for 128-bit or
+ wider integer data types as well.
+
+ Typedefs:
+ type_t Variadic function argument type. Define to the promoted
+ type corresponding to the conversion argument type
+ handled.
+
+ Variables:
+ vals Array of TYPE_T values. Choose such as to cover boundary
+ and any special cases.
+ length Length modifier string. Define according to the
+ conversion argument type handled.
+
+ See tst-printf-format-*.c for usage examples. */
+
+#include <array_length.h>
+#include <mcheck.h>
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+/* Set to nonzero to select all possible tuples with repetitions of 1..n
+ elements from the set of flags as defined in FLAGS array below; n is
+ the length of FLAGS array. Otherwise select all possible tuples with
+ repetitions of 1..2 elements, followed by tuples of 3..n elements where
+ the index of each element k; k = 2..n in FLAGS is lower than the index
+ of element k-1 in FLAGS. */
+#ifndef TST_PRINTF_DUPS
+# define TST_PRINTF_DUPS 0
+#endif
+/* Set to nonzero to report the precision (number of significand digits)
+ required for floating-point calculations. */
+#ifndef PREC
+# define PREC 0
+#endif
+
+/* The list of conversions permitted for the '#' flag, the '0' flag,
+ and precision respectively. */
+#define HASH_FORMATS "boxXaAeEfFgG"
+#define ZERO_FORMATS "bdiouxXaAeEfFgG"
+#define PREC_FORMATS "bdiouxXaAeEfFgGs"
+
+/* Output format conversion flags. */
+static struct
+{
+ /* Flag character. */
+ char f;
+ /* List of conversion specifiers the flag is valid for; NULL if all. */
+ const char *s;
+} const flags[] =
+ { {'-'}, {'+'}, {' '}, {'#', HASH_FORMATS}, {'0', ZERO_FORMATS} };
+
+/* Helper to initialize elements of the PW array for the width and
+ precision to be specified as a positive integer directly in the
+ format, and then as both a negative and a positive argument to '*'. */
+#define STR(v) #v
+#define WPINIT(v) {0, STR (v)}, {v, NULL}, {-v, NULL}
+
+/* Width and precision settings to iterate over; zero is initialized
+ directly as it has no corresponding negated value and other values
+ use the helper above. */
+static struct wp
+{
+ /* Integer argument to '*', used if S is NULL. */
+ int i;
+ /* String denoting an integer to use in the format, or NULL to use '*'. */
+ const char *s;
+} const wp[] =
+ { {0, "0"}, {0, NULL}, WPINIT (1), WPINIT (2),
+ WPINIT (MID_WIDTH), WPINIT (HUGE_WIDTH) };
+
+/* Produce a record according to '%' and zero or more output format flags
+ already provided in FMT at indices 0..IDX-1, width W if non-NULL, '.'
+ precision specifier if POINT set to true, precision P if non-NULL,
+ any length modifiers L, conversion C, and value VAL.
+
+ Record formats produced:
+
+ %<FLAGS><L><C>:<VAL>:
+ %<FLAGS>.<L><C>:<VAL>:
+ %<FLAGS><W><L><C>:<VAL>:
+ %<FLAGS><W>.<L><C>:<VAL>:
+ %<FLAGS>.<P><L><C>:<VAL>:
+ %<FLAGS><W>.<P><L><C>:<VAL>:
+ %<FLAGS>*<L><C>:<W>:<VAL>:
+ %<FLAGS>*.<L><C>:<W>:<VAL>:
+ %<FLAGS>.*<L><C>:<P>:<VAL>:
+ %<FLAGS>*.*<L><C>:<W>:<P>:<VAL>:
+
+ Return 0 on success, -1 on failure. */
+
+static int
+do_printf (char *fmt, size_t idx,
+ const struct wp *w, bool point, const struct wp *p,
+ const char *l, char c, type_t val)
+{
+ int wpval[2] = { 0 };
+ size_t nint = 0;
+ int result;
+ size_t i;
+
+ if (w != NULL)
+ {
+ if (w->s == NULL)
+ {
+ fmt[idx++] = '*';
+ wpval[nint++] = w->i;
+ }
+ else
+ for (i = 0; w->s[i] != '\0'; i++)
+ fmt[idx++] = w->s[i];
+ }
+ if (point)
+ fmt[idx++] = '.';
+ if (p != NULL)
+ {
+ if (p->s == NULL)
+ {
+ fmt[idx++] = '*';
+ wpval[nint++] = p->i;
+ }
+ else
+ for (i = 0; p->s[i] != '\0'; i++)
+ fmt[idx++] = p->s[i];
+ }
+ for (i = 0; length[i] != '\0'; i++)
+ fmt[idx++] = length[i];
+ fmt[idx++] = c;
+ fmt[idx] = ':';
+ fmt[idx + 1] = '\0';
+ if (fputs (fmt, stdout) == EOF)
+ {
+ perror ("fputs");
+ return -1;
+ }
+ fmt[idx++] = '\0';
+ if (nint > 0)
+ {
+ result = printf ("%i:", wpval[0]);
+ if (result < 0)
+ {
+ perror ("printf");
+ return -1;
+ }
+ if (nint > 1)
+ {
+ result = printf ("%i:", wpval[1]);
+ if (result < 0)
+ {
+ perror ("printf");
+ return -1;
+ }
+ }
+ }
+ switch (nint)
+ {
+ case 0:
+ result = printf (fmt, val);
+ break;
+ case 1:
+ result = printf (fmt, wpval[0], val);
+ break;
+ case 2:
+ result = printf (fmt, wpval[0], wpval[1], val);
+ break;
+ default:
+ fputs ("Broken test, nint > 2\n", stderr);
+ return -1;
+ }
+ if (result < 0)
+ {
+ perror ("printf");
+ return -1;
+ }
+ if (fputs (":\n", stdout) == EOF)
+ {
+ perror ("fputs");
+ return -1;
+ }
+ return 0;
+}
+
+/* Produce a list of records according to '%' and zero or more output
+ format flags already provided in FMT at indices 0..IDX-1, iterating
+ over widths and precisions defined in global WP array, any length
+ modifiers L, conversion C, and value VAL. Inline '0' is omitted for
+ the width, as it is a flag already handled among the flags supplied.
+ Precision is omitted where the conversion does not allow it.
+
+ Return 0 on success, -1 on failure. */
+
+static int
+do_printf_flags (char *fmt, size_t idx, const char *l, char c, type_t val)
+{
+ bool do_prec = strchr (PREC_FORMATS, c) != NULL;
+ size_t i;
+
+ if (do_printf (fmt, idx, NULL, false, NULL, l, c, val) < 0)
+ return -1;
+ if (do_prec && do_printf (fmt, idx, NULL, true, NULL, l, c, val) < 0)
+ return -1;
+ for (i = 0; i < array_length (wp); i++)
+ {
+ size_t j;
+
+ if (do_prec && do_printf (fmt, idx, NULL, true, wp + i, l, c, val) < 0)
+ return -1;
+ /* Inline '0' is a flag rather than width and is handled elsewhere. */
+ if (wp[i].s != NULL && wp[i].s[0] == '0' && wp[i].s[1] == '\0')
+ continue;
+ if (do_printf (fmt, idx, wp + i, false, NULL, l, c, val) < 0)
+ return -1;
+ if (do_prec)
+ {
+ if (do_printf (fmt, idx, wp + i, true, NULL, l, c, val) < 0)
+ return -1;
+ for (j = 0; j < array_length (wp); j++)
+ if (do_printf (fmt, idx, wp + i, true, wp + j, l, c, val) < 0)
+ return -1;
+ }
+ }
+ return 0;
+}
+
+/* Produce a list of records using the formatted output specifier
+ supplied in ARGV[1] preceded by any length modifier supplied in
+ the global LENGTH variable, iterating over format flags defined
+ in the global FLAGS array, and values supplied in the global VALS
+ array. Note that the output specifier supplied is not verified
+ against TYPE_T, so undefined behavior will result if this is used
+ incorrectly.
+
+ If PREC is nonzero, then this record:
+
+ prec:<PREC>
+
+ is produced at the beginning. Then for each VAL from VALS a block
+ of records is produced starting with:
+
+ val:<VAL>
+
+ where VAL is formatted according to REF_FMT output format. The
+ block continues with records as shown with DO_PRINTF above using
+ flags iterated over according to TST_PRINTF_DUPS.
+
+ See the top of this file for the definitions that have to be
+ provided by the source including this skeleton. */
+
+static int
+do_test (int argc, char *argv[])
+{
+ char fmt[100] = {'%'};
+ size_t j;
+ size_t v;
+ char c;
+
+ if (argc < 2 || *argv[1] == '\0')
+ {
+ fprintf (stderr, "Usage: %s <specifier>\n", basename (argv[0]));
+ return EXIT_FAILURE;
+ }
+
+ mtrace ();
+
+ if (PREC && printf ("prec:%i\n", PREC) < 0)
+ {
+ perror ("printf");
+ return EXIT_FAILURE;
+ }
+
+ c = *argv[1];
+ for (v = 0; v < array_length (vals); v++)
+ {
+ if (printf ("val:%" REF_FMT "\n", REF_VAL (vals[v])) < 0)
+ {
+ perror ("printf");
+ return EXIT_FAILURE;
+ }
+
+ if (do_printf_flags (fmt, 1, length, c, vals[v]) < 0)
+ return EXIT_FAILURE;
+ for (j = 0; j < array_length (flags); j++)
+ {
+ bool done = false;
+ size_t i[j + 1];
+ size_t k;
+
+ memset (i, 0, sizeof (i));
+ while (!done)
+ {
+ bool skip = false;
+ size_t idx = 1;
+ char f;
+
+ for (k = 0; k <= j; k++)
+ {
+ const char *s = flags[i[k]].s;
+
+ if (s && strchr (s, c) == NULL)
+ skip = true;
+ if (!TST_PRINTF_DUPS && j > 1 && k > 0 && i[k] >= i[k - 1])
+ skip = true;
+ if (skip)
+ break;
+
+ f = flags[i[k]].f;
+ fmt[idx++] = f;
+ }
+ if (!skip && do_printf_flags (fmt, idx, length, c, vals[v]) < 0)
+ return EXIT_FAILURE;
+ for (k = 0; k <= j; k++)
+ {
+ i[k]++;
+ if (i[k] < array_length (flags))
+ break;
+ else if (k == j)
+ done = true;
+ else
+ i[k] = 0;
+ }
+ }
+ }
+ }
+
+ return EXIT_SUCCESS;
+}
+
+#define TEST_FUNCTION_ARGV do_test
+#include <support/test-driver.c>
===================================================================
@@ -0,0 +1,30 @@
+/* Test for formatted printf output for unsigned char conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 3
+#define HUGE_WIDTH 4
+#define REF_FMT "u"
+#define REF_VAL(v) ((v) & 0xff)
+typedef unsigned int type_t;
+static const type_t vals[] =
+ { 0, 1, 42, UCHAR_MAX, UCHAR_MAX + 1, UCHAR_MAX + 42 };
+static const char length[] = "hh";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,39 @@
+#!/bin/bash
+# Testing of unsigned char printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=0
+
+for f in o u x X; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-uchar $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,29 @@
+/* Test for formatted printf output for unsigned int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 7
+#define HUGE_WIDTH 14
+#define REF_FMT "u"
+#define REF_VAL(v) (v)
+typedef unsigned int type_t;
+static const type_t vals[] = { 0, 1, 42, UINT_MAX };
+static const char length[] = "";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Testing of unsigned int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="4294967295"
+for AWK in "$AWK -M" "$AWK"; do
+ val=$(echo "$ref" | $AWK '{ printf "%d\n", $1 }' 2>&1) || continue
+ test "$val" = "$ref" && status=0 && break
+done
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+for f in o u x X; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-uint $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,29 @@
+/* Test for formatted printf output for unsigned long long int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 14
+#define HUGE_WIDTH 24
+#define REF_FMT "llu"
+#define REF_VAL(v) (v)
+typedef unsigned long long int type_t;
+static const type_t vals[] = { 0, 1, 42, UINT_MAX, ULLONG_MAX };
+static const char length[] = "ll";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Testing of unsigned long long int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="18446744073709551615"
+for AWK in "$AWK -M" "$AWK"; do
+ val=$(echo "$ref" | $AWK '{ printf "%d\n", $1 }' 2>&1) || continue
+ test "$val" = "$ref" && status=0 && break
+done
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+for f in o u x X; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-ullong $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,29 @@
+/* Test for formatted printf output for unsigned long int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 14
+#define HUGE_WIDTH 24
+#define REF_FMT "lu"
+#define REF_VAL(v) (v)
+typedef unsigned long int type_t;
+static const type_t vals[] = { 0, 1, 42, ULONG_MAX };
+static const char length[] = "l";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,52 @@
+#!/bin/bash
+# Testing of unsigned long int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=77
+
+# Verify that AWK can handle the range required. It also catches:
+# "gawk: warning: -M ignored: MPFR/GMP support not compiled in"
+# message produced where bignum support is not there, which is the
+# only indication as the use of '-M' does not affect the exit status
+# in this case.
+ref="18446744073709551615"
+for AWK in "$AWK -M" "$AWK"; do
+ val=$(echo "$ref" | $AWK '{ printf "%d\n", $1 }' 2>&1) || continue
+ test "$val" = "$ref" && status=0 && break
+done
+
+test $status -eq 0 || { echo "No working AWK found" && exit $status; }
+
+for f in o u x X; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-ulong $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,30 @@
+/* Test for formatted printf output for unsigned short int conversions.
+ Copyright (C) 2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#include <limits.h>
+
+#define MID_WIDTH 3
+#define HUGE_WIDTH 6
+#define REF_FMT "u"
+#define REF_VAL(v) ((v) & 0xffff)
+typedef unsigned int type_t;
+static const type_t vals[] =
+ { 0, 1, 42, USHRT_MAX, USHRT_MAX + 1, USHRT_MAX + 42 };
+static const char length[] = "h";
+
+#include "tst-printf-format-skeleton.c"
===================================================================
@@ -0,0 +1,39 @@
+#!/bin/bash
+# Testing of unsigned short int printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+set -e
+
+common_objpfx=$1; shift
+test_program_prefix=$1; shift
+
+AWK=${AWK:-awk}
+
+status=0
+
+for f in o u x X; do
+ echo Verifying $f
+ (set -o pipefail
+ ${test_program_prefix} \
+ ${common_objpfx}stdio-common/tst-printf-format-ushort $f |
+ $AWK -f tst-printf-format.awk 2>&1 |
+ head -n 1 | sed "s/^/Conversion $f output error, first line:\n/") >&2 ||
+ status=1
+done
+
+exit $status
===================================================================
@@ -0,0 +1,119 @@
+# Testing of printf conversions.
+# Copyright (C) 2024 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library; if not, see
+# <https://www.gnu.org/licenses/>.
+
+BEGIN {
+ FS = ":"
+}
+
+/^prec:/ {
+ PREC = $2
+}
+
+/^val:/ {
+ val = $2
+ # Prepend "+" for +Inf or +NaN value lacking a sign, because gawk
+ # interpretes them as strings rather than numeric values in the
+ # non-bignum mode unless a sign has been explicitly given. Keep
+ # original 'val' for reporting.
+ value = gensub(/^(INF|NAN|inf|nan)/, "+\\1", 1, val)
+}
+
+/^%/ {
+ # Discard the trailing empty field, used to improve legibility of data.
+ input = $--NF
+ format = $1
+ width = $2
+ precision = "." $(NF - 1)
+ # Discard any negative precision, which is to be taken as if omitted.
+ sub(/\.-.*/, "", precision)
+ # Simplify handling and paste the precision and width specified as
+ # arguments to '*' directly into the format.
+ sub(/\.\*/, precision, format)
+ sub(/\*/, width, format)
+ # Discard length modifiers. They are only relevant to C data types.
+ sub(/([DHLjhltz]|wf?[1-9][0-9]*)/, "", format)
+ # Discard the '#' flag with the octal conversion if output starts with
+ # 0 in the absence of this flag. In that case no extra 0 is supposed
+ # to be produced, but gawk prepends it anyway.
+ if (format ~ /#.*o/)
+ {
+ tmpfmt = gensub(/#/, "", "g", format)
+ tmpout = sprintf(tmpfmt, value)
+ if (tmpout ~ /^ *0/)
+ format = tmpfmt
+ }
+ # Likewise with the hexadecimal conversion where zero value with the
+ # precision of zero is supposed to produce no characters, but gawk
+ # outputs 0 instead.
+ else if (format ~ /#.*[Xx]/)
+ {
+ tmpfmt = gensub(/#/, "", "g", format)
+ tmpout = sprintf(tmpfmt, value)
+ if (tmpout ~ /^ *$/)
+ format = tmpfmt
+ }
+ # AWK interpretes input opportunistically as a number, which interferes
+ # with how the 'c' conversion works: "a" input will result in "a" output
+ # however "0" input will result in "^@" output rather than "0". Force
+ # the value to be interpreted as a string then, by appending "".
+ output = sprintf(format, value "")
+ # Make up for various anomalies with the handling of +/-Inf and +/-NaN
+ # values and reprint the output produced using the string conversion,
+ # with the field width carried over and the relevant flags handled by
+ # hand.
+ if (format ~ /[EFGefg]/ && value ~ /(INF|NAN|inf|nan)/)
+ {
+ minus = format ~ /-/ ? "-" : ""
+ sign = value ~ /-/ ? "-" : format ~ /\+/ ? "+" : format ~ / / ? " " : ""
+ if (format ~ /^%[^\.1-9]*[1-9][0-9]*/)
+ width = gensub(/^%[^\.1-9]*([1-9][0-9]*).*$/, "\\1", 1, format)
+ else
+ width = ""
+ output = gensub(/[-+ ]/, "", "g", output)
+ output = sprintf("%" minus width "s", sign output)
+ }
+ # Produce "+" where the '+' flag has been used with a signed integer
+ # conversion for zero value, observing any field width in effect.
+ # In that case "+" is always supposed to be produced, but with the
+ # precision of zero gawk in the non-bignum mode produces any padding
+ # requested only.
+ else if (format ~ /\+.*[di]/ && value == 0)
+ {
+ output = gensub(/^( *) $/, format ~ /-/ ? "+\\1" : "\\1+", 1, output)
+ output = gensub(/^$/, "+", 1, output)
+ }
+ # Produce " " where the space flag has been used with a signed integer
+ # conversion for zero value. In that case at least one " " is
+ # supposed to be produced, but with the precision of zero gawk in the
+ # non-bignum mode produces nothing.
+ else if (format ~ / .*[di]/ && value == 0)
+ {
+ output = gensub(/^$/, " ", 1, output)
+ }
+ if (output != input)
+ {
+ printf "(\"%s\"%s%s, %s) => \"%s\", expected \"%s\"\n", \
+ $1, (NF > 2 ? ", " $2 : ""), (NF > 3 ? ", " $3 : ""), val, \
+ input, output > "/dev/stderr"
+ status = 1
+ }
+}
+
+END {
+ exit status
+}
This is a collection of tests for formatted printf output specifiers covering the d, i, o, u, x, and X integer conversions, the e, E, f, F, g, and G floating-point conversions, the c character conversion, and the s string conversion. Also the hh, h, l, and ll length modifiers are covered with the integer conversions as is the L length modifier with the floating-point conversions. The -, +, space, #, and 0 flags are iterated over, as permitted by the conversion handled, in tuples of 1..5, including tuples with repetitions of 2, and combined with field width and/or precision, again as permitted by the conversion. The resulting format string is then used to produce output from respective sets of input data corresponding to the specific conversion under test. POSIX extensions beyond ISO C are not used. Output is produced in the form of records which include both the format string (and width and/or precision where given in the form of separate arguments) and the conversion result, and is verified with GNU AWK using the format obtained from each such record against the reference value also supplied, relying on the fact that GNU AWK has its own independent implementation of format processing, striving to be ISO C compatible. In the course of implementation I have determined that in the non-bignum mode GNU AWK uses system sprintf(3) for the floating-point conversions, defeating the objective of doing the verification against an independent implementation. Additionally the bignum mode (using MPFR) is required to correctly output wider integer and floating-point data. Therefore for the conversions affected the relevant shell scripts sanity-check AWK and terminate with unsupported status if the bignum mode is unavailable for floating-point data or where data is output incorrectly. The f and F floating-point conversions are build-time options, depending on the environment, so they are probed for before being used. Similarly the a and A floating-point conversions, however they are currently not used, see below. Also GNU AWK does not handle the b integer conversion at all at the moment, as at 5.3.0. Support for a, A, and b conversions can however be easily added following the approach taken for the f and F conversions. Output produced by gawk for the a and A floating-point conversions does not match one produced by us: insufficient precision is used where one hasn't been explicitly given, e.g. for the negated maximum finite IEEE 754 64-bit value of -1.79769313486231570814527423731704357e+308 and "%a" format we produce -0x1.fffffffffffffp+1023 vs gawk's -0x1.000000p+1024 and a different exponent is chosen otherwise, such as with "%.a" where we output -0x2p+1023 vs gawk's -0x1p+1024 for the same value, or "%.20a" where -0x1.fffffffffffff0000000p+1023 is our output, but gawk produces -0xf.ffffffffffff80000000p+1020 instead. Consequently I chose not to include a and A conversions in testing at this time. And last but not least there are numerous corner cases that GNU AWK does not handle correctly, which are worked around by explicit handling in the AWK script. These are in particular: - extraneous leading 0 produced for the alternative form with the o conversion, e.g. { printf "%#.2o", 1 } produces "001" rather than "01", - unexpected 0 produced where no characters are expected for the input of 0 and the alternative form with the precision of 0 and the integer hexadecimal conversions, e.g. { printf "%#.x", 0 } produces "0" rather than "", - missing + character in the non-bignum mode only for the input of 0 with the + flag, precision of 0 and the signed integer conversions, e.g. { printf "%+.i", 0 } produces "" rather than "+", - missing space character in the non-bignum mode only for the input of 0 with the space flag, precision of 0 and the signed integer conversions, e.g. { printf "% .i", 0 } produces "" rather than " ", - for released gawk versions of up to 4.2.1 missing - character for the input of -NaN with the floating-point conversions, e.g. { printf "%e", "-nan" }' produces "nan" rather than "-nan", - for released gawk versions from 5.0.0 onwards + character output for the input of -NaN with the floating-point conversions, e.g. { printf "%e", "-nan" }' produces "+nan" rather than "-nan", - for released gawk versions from 5.0.0 onwards + character output for the input of Inf or NaN in the absence of the + or space flags with the floating-point conversions, e.g. { printf "%e", "inf" }' produces "+inf" rather than "inf", - for released gawk versions of up to 4.2.1 missing + character for the input of Inf or NaN with the + flag and the floating-point conversions, e.g. { printf "%+e", "inf" }' produces "inf" rather than "+inf", - for released gawk versions of up to 4.2.1 missing space character for the input of Inf or NaN with the space flag and the floating-point conversions, e.g. { printf "% e", "nan" }' produces "nan" rather than " nan", - for released gawk versions from 5.0.0 onwards + character output for the input of Inf or NaN with the space flag and the floating-point conversions, e.g. { printf "% e", "inf" }' produces "+inf" rather than " inf", - for released gawk versions from 5.0.0 onwards the field width is ignored for the input of Inf or NaN and the floating-point conversions, e.g. { printf "%20e", "-inf" }' produces "-inf" rather than " -inf", NB for released gawk versions of up to 4.2.1 floating-point conversion issues apply to the bignum mode only, as in the non-bignum mode system sprintf(3) is used. As from version 5.0.0 specialized handling has been added for [-]Inf and [-]NaN inputs and the issues listed apply to both modes. The `--posix' flag makes gawk versions from 5.0.0 onwards avoid the issue with field width and the + character unconditionally output for the input of Inf or NaN, however not the remaining issues and then the `gensub' function is not supported in the POSIX mode, so to go this path I deemed not worth it. Each test completes within single seconds except for the long double one. There the F/f formats produce a large number of digits, which appears to be computationally intensive and CPU-bound. Standalone execution time for `tst-printf-format-ldouble --direct f' is in the range of 00m36s for POWER9@2.166GHz and 09m52s for FU740@1.2GHz and output redirected locally to /dev/null, and 10m11s for FU740 and output redirected over 100Mbps network via SSH to /dev/null, so the throughput of the network adds very little (~3.2% in this case) to the processing time. This is with IEEE 754 quad. Consequently have I scaled the timeout for tst-printf-format-ldouble accordingly. Regardless, following recent practice the test has been added to the standard rather than extended set. --- Hi, This has been verified with the `powerpc64le-linux-gnu' (IBM POWER9) native target and then the same host and the `riscv64-linux-gnu' (SiFive FU740), `mips-linux-gnu' (o32 ABI) (MIPS 74Kf), and `alpha-linux-gnu' (DEC 21064A) targets. In the latter case I used TIMEOUTFACTOR=10 setting so that `tst-printf-format-double' and `tst-printf-format-ldouble' do not time out. OK to apply? Maciej --- stdio-common/Makefile | 70 +++++ stdio-common/tst-printf-format-c.c | 29 ++ stdio-common/tst-printf-format-c.sh | 32 ++ stdio-common/tst-printf-format-char.c | 31 ++ stdio-common/tst-printf-format-char.sh | 39 +++ stdio-common/tst-printf-format-double.c | 33 ++ stdio-common/tst-printf-format-double.sh | 72 +++++ stdio-common/tst-printf-format-int.c | 29 ++ stdio-common/tst-printf-format-int.sh | 52 ++++ stdio-common/tst-printf-format-ldouble.c | 35 ++ stdio-common/tst-printf-format-ldouble.sh | 72 +++++ stdio-common/tst-printf-format-llong.c | 29 ++ stdio-common/tst-printf-format-llong.sh | 52 ++++ stdio-common/tst-printf-format-long.c | 29 ++ stdio-common/tst-printf-format-long.sh | 52 ++++ stdio-common/tst-printf-format-s.c | 30 ++ stdio-common/tst-printf-format-s.sh | 32 ++ stdio-common/tst-printf-format-short.c | 31 ++ stdio-common/tst-printf-format-short.sh | 39 +++ stdio-common/tst-printf-format-skeleton.c | 370 ++++++++++++++++++++++++++++++ stdio-common/tst-printf-format-uchar.c | 30 ++ stdio-common/tst-printf-format-uchar.sh | 39 +++ stdio-common/tst-printf-format-uint.c | 29 ++ stdio-common/tst-printf-format-uint.sh | 52 ++++ stdio-common/tst-printf-format-ullong.c | 29 ++ stdio-common/tst-printf-format-ullong.sh | 52 ++++ stdio-common/tst-printf-format-ulong.c | 29 ++ stdio-common/tst-printf-format-ulong.sh | 52 ++++ stdio-common/tst-printf-format-ushort.c | 30 ++ stdio-common/tst-printf-format-ushort.sh | 39 +++ stdio-common/tst-printf-format.awk | 119 +++++++++ 31 files changed, 1658 insertions(+) glibc-tst-printf-format-all.diff