diff options
Diffstat (limited to 'newlib/libc/include/sys/_intsup.h')
| -rw-r--r-- | newlib/libc/include/sys/_intsup.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/newlib/libc/include/sys/_intsup.h b/newlib/libc/include/sys/_intsup.h new file mode 100644 index 000000000..7c3bc01cb --- /dev/null +++ b/newlib/libc/include/sys/_intsup.h @@ -0,0 +1,36 @@ +/* + * Copyright (c) 2004, 2005 by + * Ralf Corsepius, Ulm/Germany. All rights reserved. + * + * Permission to use, copy, modify, and distribute this software + * is freely granted, provided that this notice is preserved. + */ + +#ifndef _SYS__INTSUP_H +#define _SYS__INTSUP_H + +#include <sys/features.h> + +#if __GNUC_PREREQ (3, 2) +/* gcc > 3.2 implicitly defines the values we are interested */ +#define __STDINT_EXP(x) __##x##__ +#else +#define __STDINT_EXP(x) x +#include <limits.h> +#endif + +/* Check if "long long" is 64bit wide */ +/* Modern GCCs provide __LONG_LONG_MAX__, SUSv3 wants LLONG_MAX */ +#if ( defined(__LONG_LONG_MAX__) && (__LONG_LONG_MAX__ > 0x7fffffff) ) \ + || ( defined(LLONG_MAX) && (LLONG_MAX > 0x7fffffff) ) +#define __have_longlong64 1 +#endif + +/* Check if "long" is 64bit or 32bit wide */ +#if __STDINT_EXP(LONG_MAX) > 0x7fffffff +#define __have_long64 1 +#elif __STDINT_EXP(LONG_MAX) == 0x7fffffff && !defined(__SPU__) +#define __have_long32 1 +#endif + +#endif /* _SYS__INTSUP_H */ |