37 lines
985 B
C
37 lines
985 B
C
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/*
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* Copyright (c) 2004, 2005 by
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* Ralf Corsepius, Ulm/Germany. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software
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* is freely granted, provided that this notice is preserved.
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*/
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#ifndef _SYS__INTSUP_H
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#define _SYS__INTSUP_H
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#include <sys/features.h>
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#if __GNUC_PREREQ (3, 2)
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/* gcc > 3.2 implicitly defines the values we are interested */
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#define __STDINT_EXP(x) __##x##__
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#else
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#define __STDINT_EXP(x) x
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#include <limits.h>
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#endif
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/* Check if "long long" is 64bit wide */
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/* Modern GCCs provide __LONG_LONG_MAX__, SUSv3 wants LLONG_MAX */
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#if ( defined(__LONG_LONG_MAX__) && (__LONG_LONG_MAX__ > 0x7fffffff) ) \
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|| ( defined(LLONG_MAX) && (LLONG_MAX > 0x7fffffff) )
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#define __have_longlong64 1
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#endif
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/* Check if "long" is 64bit or 32bit wide */
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#if __STDINT_EXP(LONG_MAX) > 0x7fffffff
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#define __have_long64 1
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#elif __STDINT_EXP(LONG_MAX) == 0x7fffffff && !defined(__SPU__)
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#define __have_long32 1
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#endif
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#endif /* _SYS__INTSUP_H */
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