Re: stdint_.h vs intmax_t & uintmax_t

[Paul Eggert]

"Mark D. Baushke" <address@hidden> writes:

> There is one remaining interaction with stdint_.h and config.h
> which arises from m4/size_max.m4
>
> % grep SIZE_MAX config.h 
> config.h:#define SIZE_MAX 4294967295U
> % grep lib/stdint_.h
> #define SIZE_MAX (~(size_t)0)

Thanks for mentioning that.  The obvious workaround is to ifdef
SIZE_MAX as well.  Something like this.

I'd like Bruno's opinion on all this before installing into gnulib.

2005-11-14  Paul Eggert  <address@hidden>

        * lib/stdint_.h (intmax_t) [defined intmax_t]: Do not declare.
        (uintmax_t) [defined uintmax_t]: Do not declare.
        (SIZE_MAX) [defined SIZE_MAX]: Do not define.
        This works around a problem if intmax_t.m4 and/or uintmax_t.m4
        and/or size_max.m4 are also used.  Problem reported by Mark D. Baushke.

--- stdint_.h.~1.7.~    2005-05-23 03:22:39.000000000 -0700
+++ stdint_.h   2005-11-14 22:55:22.000000000 -0800
@@ -133,11 +133,19 @@ typedef unsigned long uintptr_t;
 /* 7.18.1.5. Greatest-width integer types */
 
 #ifdef _STDINT_H_HAVE_INT64
+# ifndef intmax_t
 typedef int64_t  intmax_t;
+# endif
+# ifndef uintmax_t
 typedef uint64_t uintmax_t;
+# endif
 #else
+# ifndef intmax_t
 typedef int32_t  intmax_t;
+# endif
+# ifndef uintmax_t
 typedef uint32_t uintmax_t;
+# endif
 #endif
 
 /* 7.18.2. Limits of specified-width integer types */
@@ -230,7 +238,9 @@ typedef uint32_t uintmax_t;
 #define SIG_ATOMIC_MIN 0
 #define SIG_ATOMIC_MAX 127
 
-#define SIZE_MAX (~(size_t)0)
+#ifndef SIZE_MAX
+# define SIZE_MAX (~(size_t)0)
+#endif
 
 /* wchar_t limits already defined in <stddef.h>.  */
 /* wint_t limits already defined in <wchar.h>.  */