mirror of
git://gcc.gnu.org/git/gcc.git
synced 2025-04-07 06:50:27 +08:00
40749db75c
C2x has changed the expansions of the true and false macros in <stdbool.h> so that they have type _Bool (including in #if conditions, i.e. an unsigned type in that context). Use the new expansions in GCC's <stdbool.h> for C2x. See bug 82272 for related discussion (but this patch does *not* implement the warning discussed there). Note that it's possible there may be a further change to make bool, true and false keywords (there was support in principle for that at the April WG14 meeting). But currently these expansions of type _Bool are what C2x requires and there isn't actually a paper before WG14 at present that would introduce the new keywords. Bootstrapped with no regressions on x86_64-pc-linux-gnu. gcc/ 2020-10-29 Joseph Myers <joseph@codesourcery.com> * ginclude/stdbool.h [__STDC_VERSION__ > 201710L] (true, false): Define with type _Bool. gcc/testsuite/ 2020-10-29 Joseph Myers <joseph@codesourcery.com> * gcc.dg/c11-bool-1.c, gcc.dg/c2x-bool-1.c, gcc.dg/c99-bool-4.c: New tests.
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.