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| author | Marek Polacek <polacek@redhat.com> | 2014-08-19 06:04:38 +0000 |
|---|---|---|
| committer | Marek Polacek <mpolacek@gcc.gnu.org> | 2014-08-19 06:04:38 +0000 |
| commit | 35aff4fb82ce0f615dc5e0ad73341a1fe77cbd12 (patch) | |
| tree | 252dbb8b85e09aa8d379abb28ffc5e483fa4edb2 /gcc/doc | |
| parent | fdec323d35ab9bf489e374c0545621bc90dd08c0 (diff) | |
| download | gcc-35aff4fb82ce0f615dc5e0ad73341a1fe77cbd12.zip gcc-35aff4fb82ce0f615dc5e0ad73341a1fe77cbd12.tar.gz gcc-35aff4fb82ce0f615dc5e0ad73341a1fe77cbd12.tar.bz2 | |
invoke.texi: Document -Wc99-c11-compat.
* doc/invoke.texi: Document -Wc99-c11-compat.
c-family/
* c.opt (Wc99-c11-compat): New option.
c/
* c-decl.c (diagnose_mismatched_decls): Unconditionally call
pedwarn_c99 instead of pedwarn.
(grokfield): Likewise.
(warn_defaults_to): New function.
(grokdeclarator): Call warn_defaults_to instead of pedwarn_c99.
Unconditionally call pedwarn_c99 instead of pedwarn.
(start_function): Call warn_defaults_to instead of pedwarn_c99.
(declspecs_add_scspec): Call pedwarn_c99 instead of pedwarn, don't
check flag_isoc11 before.
* c-errors.c (pedwarn_c99): Change the return type to bool.
Handle -Wc99-c11-compat.
* c-parser.c (disable_extension_diagnostics): Handle
warn_c99_c11_compat.
(restore_extension_diagnostics): Likewise.
(c_parser_static_assert_declaration_no_semi): Call pedwarn_c99
instead of pedwarn, don't check flag_isoc11 before.
(c_parser_declspecs): Likewise.
(c_parser_alignas_specifier): Likewise.
(c_parser_alignof_expression): Likewise.
(c_parser_generic_selection): Likewise.
* c-tree.h (pedwarn_c99): Update declaration.
* c-typeck.c (c_finish_return): Call pedwarn or warning_at instead
of pedwarn_c99.
testsuite/
* gcc.dg/Wc99-c11-compat-1.c: New test.
* gcc.dg/Wc99-c11-compat-2.c: New test.
* gcc.dg/Wc99-c11-compat-3.c: New test.
* gcc.dg/Wc99-c11-compat-4.c: New test.
* gcc.dg/Wc99-c11-compat-5.c: New test.
* gcc.dg/Wc99-c11-compat-6.c: New test.
* gcc.dg/Wc99-c11-compat-7.c: New test.
From-SVN: r214133
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 6374261..8ea3689 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -241,7 +241,7 @@ Objective-C and Objective-C++ Dialects}. -w -Wextra -Wall -Waddress -Waggregate-return @gol -Waggressive-loop-optimizations -Warray-bounds @gol -Wno-attributes -Wno-builtin-macro-redefined @gol --Wc90-c99-compat @gol +-Wc90-c99-compat -Wc99-c11-compat @gol -Wc++-compat -Wc++11-compat -Wcast-align -Wcast-qual @gol -Wchar-subscripts -Wclobbered -Wcomment -Wconditionally-supported @gol -Wconversion -Wcoverage-mismatch -Wdate-time -Wdelete-incomplete -Wno-cpp @gol @@ -4527,6 +4527,16 @@ type, @code{bool} type, compound literals, designated initializers, and so on. This option is independent of the standards mode. Warnings are disabled in the expression that follows @code{__extension__}. +@item -Wc99-c11-compat @r{(C and Objective-C only)} +@opindex Wc99-c11-compat +@opindex Wno-c99-c11-compat +Warn about features not present in ISO C99, but present in ISO C11. +For instance, warn about use of anonymous structures and unions, +@code{_Atomic} type qualifier, @code{_Thread_local} storage-class specifier, +@code{_Alignas} specifier, @code{Alignof} operator, @code{_Generic} keyword, +and so on. This option is independent of the standards mode. Warnings are +disabled in the expression that follows @code{__extension__}. + @item -Wc++-compat @r{(C and Objective-C only)} Warn about ISO C constructs that are outside of the common subset of ISO C and ISO C++, e.g.@: request for implicit conversion from |