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Changes to cerrno to protect against the case the ELAST is not defined.

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llvm-svn: 129255
This commit is contained in:
Howard Hinnant 2011-04-10 19:46:55 +00:00
parent 3aef3d8713
commit 784ba65787
1 changed files with 19 additions and 1 deletions
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20
libcxx/include/cerrno
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@ -30,25 +30,43 @@ Macros:
#if !defined(EOWNERDEAD) || !defined(ENOTRECOVERABLE)
#ifdef ELAST
const int __elast1 = ELAST+1;
const int __elast2 = ELAST+2;
#undef ELAST
#else
const int __elast1 = 104;
const int __elast2 = 105;
#endif
#ifdef ENOTRECOVERABLE
#define EOWNERDEAD __elast1
#ifdef ELAST
#undef ELAST
#define ELAST EOWNERDEAD
#endif
#elif defined(EOWNERDEAD)
#define ENOTRECOVERABLE __elast1
#ifdef ELAST
#undef ELAST
#define ELAST ENOTRECOVERABLE
#endif
#else // defined(EOWNERDEAD)
#define EOWNERDEAD __elast1
#define ENOTRECOVERABLE __elast2
#ifdef ELAST
#undef ELAST
#define ELAST ENOTRECOVERABLE
#endif
#endif // defined(EOWNERDEAD)