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| author | Ken Matsui <kmatsui@gcc.gnu.org> | 2024-03-01 22:10:55 -0800 |
|---|---|---|
| committer | Ken Matsui <kmatsui@gcc.gnu.org> | 2024-10-08 21:17:47 -0400 |
| commit | 821d56100e1110ab6a166f50819522254eb30923 (patch) | |
| tree | 5fb0a0aeb61c795781d51a274568139d4647d804 /gcc/c-family | |
| parent | 41179a3276807c6bb6d30f9bafb6b9da31320e48 (diff) | |
| download | gcc-821d56100e1110ab6a166f50819522254eb30923.zip gcc-821d56100e1110ab6a166f50819522254eb30923.tar.gz gcc-821d56100e1110ab6a166f50819522254eb30923.tar.bz2 | |
gcc, libcpp: Add warning switch for "#pragma once in main file" [PR89808]
This patch adds a warning switch for "#pragma once in main file". The
warning option name is Wpragma-once-outside-header, which is the same
as Clang provides.
PR preprocessor/89808
gcc/c-family/ChangeLog:
* c.opt (Wpragma_once_outside_header): Define new option.
* c.opt.urls: Regenerate.
gcc/ChangeLog:
* doc/invoke.texi (Warning Options): Document
-Wno-pragma-once-outside-header.
libcpp/ChangeLog:
* include/cpplib.h (cpp_warning_reason): Define
CPP_W_PRAGMA_ONCE_OUTSIDE_HEADER.
* directives.cc (do_pragma_once): Use
CPP_W_PRAGMA_ONCE_OUTSIDE_HEADER.
gcc/testsuite/ChangeLog:
* g++.dg/warn/Wno-pragma-once-outside-header.C: New test.
* g++.dg/warn/Wpragma-once-outside-header.C: New test.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Reviewed-by: Marek Polacek <polacek@redhat.com>
Diffstat (limited to 'gcc/c-family')
| -rw-r--r-- | gcc/c-family/c.opt | 4 | ||||
| -rw-r--r-- | gcc/c-family/c.opt.urls | 3 |
2 files changed, 7 insertions, 0 deletions
diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt index 9d1fcca..1f2e72a 100644 --- a/gcc/c-family/c.opt +++ b/gcc/c-family/c.opt @@ -1214,6 +1214,10 @@ Wpragmas C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) Warning Warn about misuses of pragmas. +Wpragma-once-outside-header +C ObjC C++ ObjC++ Var(warn_pragma_once_outside_header) CppReason(CPP_W_PRAGMA_ONCE_OUTSIDE_HEADER) Init(1) Warning +Warn about #pragma once outside of a header. + Wprio-ctor-dtor C ObjC C++ ObjC++ Var(warn_prio_ctor_dtor) Init(1) Warning Warn if constructor or destructors with priorities from 0 to 100 are used. diff --git a/gcc/c-family/c.opt.urls b/gcc/c-family/c.opt.urls index b77575b..b1593ef 100644 --- a/gcc/c-family/c.opt.urls +++ b/gcc/c-family/c.opt.urls @@ -684,6 +684,9 @@ UrlSuffix(gcc/Warning-Options.html#index-Wno-pointer-to-int-cast) Wpragmas UrlSuffix(gcc/Warning-Options.html#index-Wno-pragmas) +Wpragma-once-outside-header +UrlSuffix(gcc/Warning-Options.html#index-Wno-pragma-once-outside-header) + Wprio-ctor-dtor UrlSuffix(gcc/Warning-Options.html#index-Wno-prio-ctor-dtor) |