mirror of git://gcc.gnu.org/git/gcc.git
2d6c8eea1d
pmr::resource_adaptor can avoid allocating an oversized buffer and doing manual alignment within that buffer when the wrapped allocator is known to always meet the requested alignment. Specifically, if the allocator is known to use malloc or new directly, then we can call the allocator directly for any fundamental alignment. PR libstdc++/70940 * include/experimental/memory_resource (__resource_adaptor_common::_AlignMgr::_M_unadjust): Add assertion. (__resource_adaptor_common::__guaranteed_alignment): New helper to give maximum alignment an allocator guarantees. Specialize for known allocators using new and malloc. (__resource_adaptor_imp::do_allocate): Use __guaranteed_alignment. (__resource_adaptor_imp::do_deallocate): Likewise. * testsuite/experimental/memory_resource/new_delete_resource.cc: Check that new and delete are called with expected sizes. From-SVN: r262935 |
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| config | ||
| contrib | ||
| fixincludes | ||
| gcc | ||
| gnattools | ||
| gotools | ||
| include | ||
| intl | ||
| libada | ||
| libatomic | ||
| libbacktrace | ||
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| libsanitizer | ||
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| ABOUT-NLS | ||
| COPYING | ||
| COPYING.LIB | ||
| COPYING.RUNTIME | ||
| COPYING3 | ||
| COPYING3.LIB | ||
| ChangeLog | ||
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| MAINTAINERS | ||
| Makefile.def | ||
| Makefile.in | ||
| Makefile.tpl | ||
| README | ||
| compile | ||
| config-ml.in | ||
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| configure | ||
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README
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the files whose names start with COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs/ for how to report bugs usefully. Copyright years on GCC source files may be listed using range notation, e.g., 1987-2012, indicating that every year in the range, inclusive, is a copyrightable year that could otherwise be listed individually.