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question on limits.h
- From: Eric Blake <ebb9 at byu dot net>
- To: cygwin-patches at cygwin dot com
- Date: Fri, 27 May 2005 14:15:30 +0000 (UTC)
- Subject: question on limits.h
My reading of POSIX says that LLONG_MIN and friends must always be defined, and
not just when the version of C is new enough:
http://www.opengroup.org/onlinepubs/009695399/basedefs/limits.h.html
At any rate, I was surprised when I noticed that coreutils was redefining
ULLONG_MAX because it couldn't find it in limits.h.
2005-05-27 Eric Blake <ebb9@byu.net>
(LLONG_MIN, LLONG_MAX, ULLONG_MAX): Always define.
Index: cygwin/include/limits.h
===================================================================
RCS file: /cvs/src/src/winsup/cygwin/include/limits.h,v
retrieving revision 1.15
diff -u -r1.15 limits.h
--- cygwin/include/limits.h 19 May 2005 19:45:28 -0000 1.15
+++ cygwin/include/limits.h 27 May 2005 14:15:47 -0000
@@ -107,7 +107,6 @@
#define ULONG_LONG_MAX (LONG_LONG_MAX * 2ULL + 1)
#endif
-#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
/* Minimum and maximum values a `signed long long int' can hold. */
#undef LLONG_MIN
#define LLONG_MIN (-LLONG_MAX-1)
@@ -117,7 +116,6 @@
/* Maximum value an `unsigned long long int' can hold. (Minimum is 0). */
#undef ULLONG_MAX
#define ULLONG_MAX (LLONG_MAX * 2ULL + 1)
-#endif
/* Maximum number of iovcnt in a writev (an arbitrary number) */
#undef IOV_MAX