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| author | sdefresne@chromium.org <sdefresne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-02-28 14:32:21 +0000 |
|---|---|---|
| committer | sdefresne@chromium.org <sdefresne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-02-28 14:32:21 +0000 |
| commit | bb259180a51d04e2ec5a3437ae4a8c49eb700bd7 (patch) | |
| tree | 623a2c7ea56a94ba5c4ca3f90f18dfcc5455e050 /base | |
| parent | 3dab7b72278dcecce11e06eea61a140716b6aaaa (diff) | |
| download | chromium_src-bb259180a51d04e2ec5a3437ae4a8c49eb700bd7.zip chromium_src-bb259180a51d04e2ec5a3437ae4a8c49eb700bd7.tar.gz chromium_src-bb259180a51d04e2ec5a3437ae4a8c49eb700bd7.tar.bz2 | |
Add a macro NSSTRING_FORMAT for Objective-C formatting function
Objective-C functions that accepts a format string parameter cannot use
the PRINTF_FORMAT since this does not supports the %@ specifier. Define
a new macro NSSTRING_FORMAT that tell the compiler the function formats
using the same rules as +[NSString stringWithFormat:].
References:
http://nshipster.com/__attribute__/
BUG=None
Review URL: https://codereview.chromium.org/183443002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254099 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base')
| -rw-r--r-- | base/compiler_specific.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/base/compiler_specific.h b/base/compiler_specific.h index cbb60a0d..c83b6b5 100644 --- a/base/compiler_specific.h +++ b/base/compiler_specific.h @@ -196,6 +196,18 @@ // If available, it would look like: // __attribute__((format(wprintf, format_param, dots_param))) +#if defined(__OBJC__) +// Tell the compiler a function is using a +[NSString stringWithFormat:] +// style format string. |format_param| is the one-based index of the format +// string parameter; |dots_param| is the one-based index of the "..." +// parameter. This should only be used when building Objective-C code. +#if defined(COMPILER_GCC) +#define NSSTRING_FORMAT(format_param, dots_param) \ + __attribute__((format(__NSString__, format_param, dots_param))) +#else +#define NSSTRING_FORMAT(format_param, dots_param) +#endif // defined(COMPILER_GCC) +#endif // defined(__OBJC__) // MemorySanitizer annotations. #if defined(MEMORY_SANITIZER) && !defined(OS_NACL) |