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software/include/base/limits: Fix ULONG_MAX on 64-bit

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The value of ULONG_MAX should depend on the size of "long".

While at it:
  - Add missing "UL" and "U" suffixes to large unsigned values,
  - Make INT_MIN and SHRT_MIN explicitly negative,
  - Use decimal instead of hexadecimal values, for easier comparison
    with /usr/include/limits.h.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
This commit is contained in:
Geert Uytterhoeven 2021-01-19 14:37:26 +01:00
parent e0786c3f94
commit 1710c5f1ef
1 changed files with 12 additions and 8 deletions
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20
litex/soc/software/include/base/limits.h
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@ -5,17 +5,21 @@
extern "C" { extern "C" {
#endif #endif
#define ULONG_MAX 0xffffffff #ifdef __LP64__
#define ULONG_MAX 18446744073709551615UL
#else
#define ULONG_MAX 4294967295UL
#endif
#define UINT_MAX 0xffffffff #define UINT_MAX 4294967295U
#define INT_MIN 0x80000000 #define INT_MIN (-INT_MAX - 1)
#define INT_MAX 0x7fffffff #define INT_MAX 2147483647
#define USHRT_MAX 0xffff #define USHRT_MAX 65535
#define SHRT_MIN 0x8000 #define SHRT_MIN (-32768)
#define SHRT_MAX 0x7fff #define SHRT_MAX 32767
#define UCHAR_MAX 0xff #define UCHAR_MAX 255
#define CHAR_BIT 8 #define CHAR_BIT 8