676997cfd2
* c-common.c (builtin_define_type_max): New.
(cb_register_builtins): Define __SCHAR_MAX__, __SHRT_MAX__,
__INT_MAX__, __LONG_MAX__, __LONG_LONG_MAX__, __CHAR_BIT__.
From Joseph S. Myers:
* glimits.h: Rewrite to expect the double underscore definitions
from the compiler.
* config/alpha/unicosmk.h, config/avr/avr.h, config/h8300/h8300.h,
config/i386/linux64.h, config/ia64/aix.h, config/ia64/hpux.h,
config/ia64/ia64.h, config/m68hc11/m68hc11.h, config/m68hc11/m68hc12.h,
config/mips/mips.h, config/mmix/mmix.h, config/mn10200/mn10200.h,
config/pa/pa.h, config/rs6000/aix43.h, config/rs6000/aix51.h,
config/rs6000/linux64.h, config/s390/linux.h, config/sh/sh.h,
config/stormy16/stormy16.h: Don't define any of __SHRT_MAX__,
__INT_MAX__, __LONG_MAX__, or __LONG_LONG_MAX__.
From-SVN: r54544
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
#ifndef _LIMITS_H___
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#define _LIMITS_H___
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/* Number of bits in a `char'. */
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#undef CHAR_BIT
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#define CHAR_BIT __CHAR_BIT__
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/* Maximum length of a multibyte character. */
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#ifndef MB_LEN_MAX
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#define MB_LEN_MAX 1
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#endif
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/* Minimum and maximum values a `signed char' can hold. */
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#undef SCHAR_MIN
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#define SCHAR_MIN (-SCHAR_MAX - 1)
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#undef SCHAR_MAX
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#define SCHAR_MAX __SCHAR_MAX__
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/* Maximum value an `unsigned char' can hold. (Minimum is 0). */
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#undef UCHAR_MAX
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#if __SCHAR_MAX__ == __INT_MAX__
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# define UCHAR_MAX (SCHAR_MAX * 2U + 1U)
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#else
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# define UCHAR_MAX (SCHAR_MAX * 2 + 1)
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#endif
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/* Minimum and maximum values a `char' can hold. */
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#ifdef __CHAR_UNSIGNED__
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# undef CHAR_MIN
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# if __SCHAR_MAX__ == __INT_MAX__
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# define CHAR_MIN 0U
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# else
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# define CHAR_MIN 0
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# endif
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# undef CHAR_MAX
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# define CHAR_MAX UCHAR_MAX
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#else
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# undef CHAR_MIN
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# define CHAR_MIN SCHAR_MIN
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# undef CHAR_MAX
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# define CHAR_MAX SCHAR_MAX
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#endif
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/* Minimum and maximum values a `signed short int' can hold. */
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#undef SHRT_MIN
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#define SHRT_MIN (-SHRT_MAX - 1)
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#undef SHRT_MAX
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#define SHRT_MAX __SHRT_MAX__
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/* Maximum value an `unsigned short int' can hold. (Minimum is 0). */
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#undef USHRT_MAX
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#if __SHRT_MAX__ == __INT_MAX__
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# define USHRT_MAX (SHRT_MAX * 2U + 1U)
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#else
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# define USHRT_MAX (SHRT_MAX * 2 + 1)
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#endif
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/* Minimum and maximum values a `signed int' can hold. */
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#undef INT_MIN
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#define INT_MIN (-INT_MAX - 1)
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#undef INT_MAX
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#define INT_MAX __INT_MAX__
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/* Maximum value an `unsigned int' can hold. (Minimum is 0). */
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#undef UINT_MAX
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#define UINT_MAX (INT_MAX * 2U + 1U)
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/* Minimum and maximum values a `signed long int' can hold.
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(Same as `int'). */
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#undef LONG_MIN
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#define LONG_MIN (-LONG_MAX - 1L)
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#undef LONG_MAX
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#define LONG_MAX __LONG_MAX__
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/* Maximum value an `unsigned long int' can hold. (Minimum is 0). */
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#undef ULONG_MAX
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#define ULONG_MAX (LONG_MAX * 2UL + 1UL)
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#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
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/* Minimum and maximum values a `signed long long int' can hold. */
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# undef LLONG_MIN
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# define LLONG_MIN (-LLONG_MAX - 1LL)
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# undef LLONG_MAX
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# define LLONG_MAX __LONG_LONG_MAX__
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/* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
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# undef ULLONG_MAX
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# define ULLONG_MAX (LLONG_MAX * 2ULL + 1ULL)
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#endif
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#if defined (__GNU_LIBRARY__) ? defined (__USE_GNU) : !defined (__STRICT_ANSI__)
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/* Minimum and maximum values a `signed long long int' can hold. */
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# undef LONG_LONG_MIN
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# define LONG_LONG_MIN (-LONG_LONG_MAX - 1LL)
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# undef LONG_LONG_MAX
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# define LONG_LONG_MAX __LONG_LONG_MAX__
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/* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
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# undef ULONG_LONG_MAX
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# define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1ULL)
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#endif
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#endif /* _LIMITS_H___ */
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