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Compilers other than GCC deserve offsetof, don't they?

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svn path=/trunk/; revision=41519
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KJK::Hyperion 2009-06-21 21:40:37 +00:00
parent d38eca89a3
commit da2965ea12
1 changed files with 5 additions and 1 deletions
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6
reactos/include/crt/stddef.h
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@ -287,7 +287,7 @@ typedef long ssize_t;
symbols in the _FOO_T_ family, stays defined even after its
corresponding type is defined). If we define wchar_t, then we
must undef _WCHAR_T_; for BSD/386 1.1 (and perhaps others), if
we undef _WCHAR_T_, then we must also define rune_t, since
we undef _WCHAR_T_, then we must also define rune_t, since
headers like runetype.h assume that if machine/ansi.h is included,
and _BSD_WCHAR_T_ is not defined, then rune_t is available.
machine/ansi.h says, "Note that _WCHAR_T_ and _RUNE_T_ must be of
@ -390,7 +390,11 @@ typedef __WCHAR_TYPE__ wchar_t;
#ifndef offsetof
/* Offset of member MEMBER in a struct of type TYPE. */
#if defined(__GNUC__)
#define offsetof(TYPE, MEMBER) __builtin_offsetof (TYPE, MEMBER)
#else
#define offsetof(TYPE, MEMBER) ((size_t)&(((TYPE *)0)->MEMBER))
#endif
#endif /* !offsetof */