commit 06b0c37a34789f14726f8280cae2e70d8942b864
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Mon Jan 26 19:57:08 2015 +0000
PR libstdc++/64368
* config/locale/gnu/numeric_members.cc (numpunct<char>::~numpunct(),
numpunct<wchar_t>::~numpunct()): Do not set _M_data->_M_grouping.
* src/c++11/cxx11-shim_facets.cc (numpunct_shim): Remove _M_grouping
and use cache's _M_grouping field.
(__numpunct_fill_cache): Likewise.
(__moneypunct_fill_cache): Improve comments.
@@ -117,7 +117,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
if (_M_data->_M_grouping_size)
delete [] _M_data->_M_grouping;
- _M_data->_M_grouping = 0;
delete _M_data;
}
@@ -210,7 +209,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
{
if (_M_data->_M_grouping_size)
delete [] _M_data->_M_grouping;
- _M_data->_M_grouping = 0;
delete _M_data;
}
#endif
@@ -170,8 +170,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
template<typename C>
void
- __numpunct_fill_cache(other_abi, const facet*, __numpunct_cache<C>*,
- const char*&, size_t&);
+ __numpunct_fill_cache(other_abi, const facet*, __numpunct_cache<C>*);
template<typename C>
int
@@ -235,24 +234,19 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
numpunct_shim(const facet* f, __cache_type* c = new __cache_type)
: std::numpunct<_CharT>(c), __shim(f), _M_cache(c)
{
- __numpunct_fill_cache(other_abi{}, f, c, _M_grouping,
- _M_grouping_size);
+ __numpunct_fill_cache(other_abi{}, f, c);
}
- ~numpunct_shim() { delete[] _M_grouping; }
-
- virtual string
- do_grouping() const
- { return string(_M_grouping, _M_grouping_size); }
+ ~numpunct_shim()
+ {
+ // Stop GNU locale's ~numpunct() from freeing the cached string.
+ _M_cache->_M_grouping_size = 0;
+ }
- // No need to override other virtual functions, the base definitions
+ // No need to override any virtual functions, the base definitions
// will return the cached data.
__cache_type* _M_cache;
- // numpunct uses __numpunct_cache<C>::_M_grouping for its own purposes
- // so we can't store that in the cache
- const char* _M_grouping;
- size_t _M_grouping_size;
};
template<typename _CharT>
@@ -348,7 +342,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
~moneypunct_shim()
{
- // stop GNU locale's ~moneypunct() from freeing these strings
+ // Stop GNU locale's ~moneypunct() from freeing the cached strings.
_M_cache->_M_grouping_size = 0;
_M_cache->_M_curr_symbol_size = 0;
_M_cache->_M_positive_sign_size = 0;
@@ -497,37 +491,36 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
// Now define and instantiate the functions that will be called by the
// shim facets defined when this file is recompiled for the other ABI.
+ // Cache the values returned by the numpunct facet f.
+ // Sets c->_M_allocated so that the __numpunct_cache destructor will
+ // delete[] the strings allocated by this function.
template<typename C>
void
- __numpunct_fill_cache(current_abi, const facet* f, __numpunct_cache<C>* c,
- const char*& grouping, size_t& grouping_size)
+ __numpunct_fill_cache(current_abi, const facet* f, __numpunct_cache<C>* c)
{
auto* m = static_cast<const numpunct<C>*>(f);
c->_M_decimal_point = m->decimal_point();
c->_M_thousands_sep = m->thousands_sep();
+ c->_M_grouping = nullptr;
c->_M_truename = nullptr;
c->_M_falsename = nullptr;
// set _M_allocated so that if any allocation fails the previously
- // allocated strings will be deleted in ~__numpunct_c()
+ // allocated strings will be deleted in ~__numpunct_cache()
c->_M_allocated = true;
+ c->_M_grouping_size = __copy(c->_M_grouping, m->grouping());
c->_M_truename_size = __copy(c->_M_truename, m->truename());
c->_M_falsename_size = __copy(c->_M_falsename, m->falsename());
- // Set grouping last as it is only deleted by ~numpunct_shim() which
- // won't run if this function throws an exception.
- grouping_size = __copy(grouping, m->grouping());
}
template void
- __numpunct_fill_cache(current_abi, const facet*, __numpunct_cache<char>*,
- const char*&, size_t&);
+ __numpunct_fill_cache(current_abi, const facet*, __numpunct_cache<char>*);
#ifdef _GLIBCXX_USE_WCHAR_T
template void
- __numpunct_fill_cache(current_abi, const facet*, __numpunct_cache<wchar_t>*,
- const char*&, size_t&);
+ __numpunct_fill_cache(current_abi, const facet*, __numpunct_cache<wchar_t>*);
#endif
template<typename C>
@@ -567,6 +560,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
const wchar_t*, const wchar_t*);
#endif
+ // Cache the values returned by the moneypunct facet, f.
+ // Sets c->_M_allocated so that the __moneypunct_cache destructor will
+ // delete[] the strings allocated by this function.
template<typename C, bool Intl>
void
__moneypunct_fill_cache(current_abi, const facet* f,
@@ -582,8 +578,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
c->_M_curr_symbol = nullptr;
c->_M_positive_sign = nullptr;
c->_M_negative_sign = nullptr;
- // set _M_allocated so that if any allocation fails the previously
- // allocated strings will be deleted in ~__moneypunct_c()
+ // Set _M_allocated so that if any allocation fails the previously
+ // allocated strings will be deleted in ~__moneypunct_cache().
c->_M_allocated = true;
c->_M_grouping_size = __copy(c->_M_grouping, m->grouping());