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| author | sdefresne@chromium.org <sdefresne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-03-10 20:16:34 +0000 |
|---|---|---|
| committer | sdefresne@chromium.org <sdefresne@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2014-03-10 20:16:34 +0000 |
| commit | 3394a7c1d759a4786315a442532f79c7dfe55c4e (patch) | |
| tree | 543d5099d59020d9d5837c459ae1d3a1da5f9fc5 /base/format_macros.h | |
| parent | 4ef5e13162cbfb214d9819ee2067388d6877cb5f (diff) | |
| download | chromium_src-3394a7c1d759a4786315a442532f79c7dfe55c4e.zip chromium_src-3394a7c1d759a4786315a442532f79c7dfe55c4e.tar.gz chromium_src-3394a7c1d759a4786315a442532f79c7dfe55c4e.tar.bz2 | |
Define print format macros for NSInteger & NSUInteger
The size of NSInteger and NSUInteger varies between 32-bit and 64-bit
architectures, however does not provides macro to safely format them
and instead recommend casting the value to the larger version that is
used on 64-bit architecture.
Using a cast could cause some formatting to be missed (if the type of
a variable changes), so instead we define our own macros to format those
types safely.
BUG=349458
Review URL: https://codereview.chromium.org/192443003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@256019 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'base/format_macros.h')
| -rw-r--r-- | base/format_macros.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/base/format_macros.h b/base/format_macros.h index 466d79b..4d90c59 100644 --- a/base/format_macros.h +++ b/base/format_macros.h @@ -46,6 +46,34 @@ #define PRIuS "zu" #endif +// The size of NSInteger and NSUInteger varies between 32-bit and 64-bit +// architectures and Apple does not provides standard format macros and +// recommends casting. This has many drawbacks, so instead define macros +// for formatting those types. +#if defined(OS_MACOSX) +#if defined(ARCH_CPU_64_BITS) +#if !defined(PRIdNS) +#define PRIdNS "ld" +#endif +#if !defined(PRIuNS) +#define PRIuNS "lu" +#endif +#if !defined(PRIxNS) +#define PRIxNS "lx" +#endif +#else // defined(ARCH_CPU_64_BITS) +#if !defined(PRIdNS) +#define PRIdNS "d" +#endif +#if !defined(PRIuNS) +#define PRIuNS "u" +#endif +#if !defined(PRIxNS) +#define PRIxNS "x" +#endif +#endif +#endif // defined(OS_MACOSX) + #else // OS_WIN #if !defined(PRId64) |