#ifndef _GL_STDINT_H
+/* When including a system file that in turn includes <inttypes.h>,
+ use the system <inttypes.h>, not our substitute. This avoids
+ problems with (for example) VMS, whose <sys/bitypes.h> includes
+ <inttypes.h>. */
+#define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
+
/* Get those types that are already defined in other system include
files, so that we can "#define int8_t signed char" below without
worrying about a later system include file containing a "typedef
/* In OpenBSD 3.8, <inttypes.h> includes <machine/types.h>, which defines
int{8,16,32,64}_t, uint{8,16,32,64}_t and __BIT_TYPES_DEFINED__.
<inttypes.h> also defines intptr_t and uintptr_t. */
-# define _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
# include <inttypes.h>
-# undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
#elif @HAVE_SYS_INTTYPES_H@
/* Solaris 7 <sys/inttypes.h> has the types except the *_fast*_t types, and
the macros except for *_FAST*_*, INTPTR_MIN, PTRDIFF_MIN, PTRDIFF_MAX. */
#endif
+#undef _GL_JUST_INCLUDE_SYSTEM_INTTYPES_H
+
/* Minimum and maximum values for a integer type under the usual assumption.
Return an unspecified value if BITS == 0, adding a check to pacify
picky compilers. */
#define _STDINT_MAX(signed, bits, zero) \
((signed) \
? ~ _STDINT_MIN (signed, bits, zero) \
- : ((((zero) + 1) << ((bits) ? (bits) - 1 : 0)) - 1) * 2 + 1)
+ : /* The expression for the unsigned case. The subtraction of (signed) \
+ is a nop in the unsigned case and avoids "signed integer overflow" \
+ warnings in the signed case. */ \
+ ((((zero) + 1) << ((bits) ? (bits) - 1 - (signed) : 0)) - 1) * 2 + 1)
/* 7.18.1.1. Exact-width integer types */
# define uintmax_t unsigned long int
#endif
+/* Verify that intmax_t and uintmax_t have the same size. Too much code
+ breaks if this is not the case. If this check fails, the reason is likely
+ to be found in the autoconf macros. */
+typedef int _verify_intmax_size[2 * (sizeof (intmax_t) == sizeof (uintmax_t)) - 1];
+
/* 7.18.2. Limits of specified-width integer types */
#if ! defined __cplusplus || defined __STDC_LIMIT_MACROS