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| author | Bernd Edlinger <bernd.edlinger@hotmail.de> | 2017-09-15 17:21:50 +0000 |
|---|---|---|
| committer | Bernd Edlinger <edlinger@gcc.gnu.org> | 2017-09-15 17:21:50 +0000 |
| commit | 1d9335766d86262f8335d63d99b328bb44543b01 (patch) | |
| tree | 5e9491b32fa26d79e07318fdf780451f77607b38 /gcc/doc | |
| parent | 4a8ca690b0b73f4e0bae542fd69a1ee0d9e73126 (diff) | |
| download | gcc-1d9335766d86262f8335d63d99b328bb44543b01.zip gcc-1d9335766d86262f8335d63d99b328bb44543b01.tar.gz gcc-1d9335766d86262f8335d63d99b328bb44543b01.tar.bz2 | |
common.opt (Wcast-align=strict): New warning option.
2017-09-15 Bernd Edlinger <bernd.edlinger@hotmail.de>
* common.opt (Wcast-align=strict): New warning option.
* doc/invoke.texi: Document -Wcast-align=strict.
c:
2017-09-15 Bernd Edlinger <bernd.edlinger@hotmail.de>
* c-typeck.c (build_c_cast): Implement -Wcast-align=strict.
cp:
2017-09-15 Bernd Edlinger <bernd.edlinger@hotmail.de>
* typeck.c (build_reinterpret_cast_1,
build_const_cast_1): Implement -Wcast-align=strict.
testsuite:
2017-09-15 Bernd Edlinger <bernd.edlinger@hotmail.de>
* c-c++-common/Wcast-align.c: New test.
From-SVN: r252832
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index a727d95..60650c8 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -266,7 +266,8 @@ Objective-C and Objective-C++ Dialects}. -Wno-attributes -Wbool-compare -Wbool-operation @gol -Wno-builtin-declaration-mismatch @gol -Wno-builtin-macro-redefined -Wc90-c99-compat -Wc99-c11-compat @gol --Wc++-compat -Wc++11-compat -Wc++14-compat -Wcast-align -Wcast-qual @gol +-Wc++-compat -Wc++11-compat -Wc++14-compat @gol +-Wcast-align -Wcast-align=strict -Wcast-qual @gol -Wchar-subscripts -Wchkp -Wcatch-value -Wcatch-value=@var{n} @gol -Wclobbered -Wcomment -Wconditionally-supported @gol -Wconversion -Wcoverage-mismatch -Wno-cpp -Wdangling-else -Wdate-time @gol @@ -5931,6 +5932,12 @@ target is increased. For example, warn if a @code{char *} is cast to an @code{int *} on machines where integers can only be accessed at two- or four-byte boundaries. +@item -Wcast-align=strict +@opindex Wcast-align=strict +Warn whenever a pointer is cast such that the required alignment of the +target is increased. For example, warn if a @code{char *} is cast to +an @code{int *} regardless of the target machine. + @item -Wwrite-strings @opindex Wwrite-strings @opindex Wno-write-strings |