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| author | Matt Beaumont-Gay <matthewbg@google.com> | 2011-12-12 22:35:02 +0000 |
|---|---|---|
| committer | Matt Beaumont-Gay <matthewbg@google.com> | 2011-12-12 22:35:02 +0000 |
| commit | 9d570c438cd31923b548bbb5d0ca84d68b3f13c7 (patch) | |
| tree | ee2eeaba41f00aab93e0310db3dab0cffaee04d0 /clang/test/SemaCXX/Inputs/array-bounds-system-header.h | |
| parent | 055d0c961b7feee0d875cd791afa2451d98980dc (diff) | |
| download | bcm5719-llvm-9d570c438cd31923b548bbb5d0ca84d68b3f13c7.tar.gz bcm5719-llvm-9d570c438cd31923b548bbb5d0ca84d68b3f13c7.zip | |
Suppress -Warray-bounds in certain cases involving macros from system headers.
The motivation here is a "clever" implementation of strncmp(), which peels the first few comparisons via chained conditional expressions which ensure that the input arrays are known at compile time to be sufficiently large.
llvm-svn: 146430
Diffstat (limited to 'clang/test/SemaCXX/Inputs/array-bounds-system-header.h')
| -rw-r--r-- | clang/test/SemaCXX/Inputs/array-bounds-system-header.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/clang/test/SemaCXX/Inputs/array-bounds-system-header.h b/clang/test/SemaCXX/Inputs/array-bounds-system-header.h new file mode 100644 index 00000000000..07cde80e9af --- /dev/null +++ b/clang/test/SemaCXX/Inputs/array-bounds-system-header.h @@ -0,0 +1,11 @@ +// "System header" for testing that -Warray-bounds is properly suppressed in +// certain cases. + +#define BAD_MACRO_1 \ + int i[3]; \ + i[3] = 5 +#define BAD_MACRO_2(_b, _i) \ + (_b)[(_i)] = 5 +#define QUESTIONABLE_MACRO(_a) \ + sizeof(_a) > 3 ? (_a)[3] = 5 : 5 +#define NOP(x) (x) |
