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Avoids sign extension error in bytevector construction

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Without this, negative numbers may change signedness

* libguile/bytevectors (is_signed_int8, is_unsigned_int8)
  (is_signed_int16, is_unsigned_int16)[__MINGW32__ __x86_64__]:
  use long long type.
This commit is contained in:
Michael Gran 2022-11-10 14:45:31 -08:00
parent bb646c42f7
commit 591e10a121
1 changed files with 5 additions and 1 deletions
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6
libguile/bytevectors.c
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@ -71,14 +71,18 @@
#define INT16_T_unsigned uint16_t
#define INT32_T_signed int32_t
#define INT32_T_unsigned uint32_t
#if !(__MINGW32__ && __x86_64__)
#define is_signed_int8(_x) (((_x) >= -128L) && ((_x) <= 127L))
#define is_unsigned_int8(_x) ((_x) <= 255UL)
#define is_signed_int16(_x) (((_x) >= -32768L) && ((_x) <= 32767L))
#define is_unsigned_int16(_x) ((_x) <= 65535UL)
#if !(__MINGW32__ && __x86_64__)
#define is_signed_int32(_x) (((_x) >= -2147483648L) && ((_x) <= 2147483647L))
#define is_unsigned_int32(_x) ((_x) <= 4294967295UL)
#else /* (__MINGW32__ && __x86_64__) */
#define is_signed_int8(_x) (((_x) >= -128LL) && ((_x) <= 127LL))
#define is_unsigned_int8(_x) ((_x) <= 255ULL)
#define is_signed_int16(_x) (((_x) >= -32768LL) && ((_x) <= 32767LL))
#define is_unsigned_int16(_x) ((_x) <= 65535ULL)
#define is_signed_int32(_x) (((_x) >= -2147483648LL) && ((_x) <= 2147483647LL))
#define is_unsigned_int32(_x) ((_x) <= 4294967295ULL)
#endif /* (__MINGW32__ && __x86_64__) */