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add support for the LONG_LONG_MIN/LONG_LONG_MAX/ULONG_LONG_MAX limits.h GNU extensions.

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rdar://6740292

llvm-svn: 68169
This commit is contained in:
Chris Lattner
2009-04-01 00:44:37 +00:00
parent 12edad2c50
commit f16f90b4fd
1 changed files with 15 additions and 0 deletions
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15
clang/lib/Headers/limits.h
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@@ -96,4 +96,19 @@
#define ULLONG_MAX (__LONG_LONG_MAX__*2ULL+1ULL)
#endif
/* LONG_LONG_MIN/LONG_LONG_MAX/ULONG_LONG_MAX are a GNU extension. It's too bad
that we don't have something like #pragma poison that could be used to
deprecate a macro - the code should just use LLONG_MAX and friends.
*/
#if defined(__GNU_LIBRARY__) ? defined(__USE_GNU) : !defined(__STRICT_ANSI__)
#undef LONG_LONG_MIN
#undef LONG_LONG_MAX
#undef ULONG_LONG_MAX
#define LONG_LONG_MAX __LONG_LONG_MAX__
#define LONG_LONG_MIN (-__LONG_LONG_MAX__-1LL)
#define ULONG_LONG_MAX (__LONG_LONG_MAX__*2ULL+1ULL)
#endif
#endif /* __CLANG_LIMITS_H */