Re: SSIZE_MAX on ia64

[Jes Sorensen <jes at trained-monkey dot org>]

>>>>> "Roland" == Roland McGrath <roland@frob.com> writes:

Roland> SSIZE_MAX must accurately reflect the ssize_t type.  It is
Roland> presently incorrect on all 64-bit platforms.  On every
Roland> platform I am aware of, ssize_t == long int (i.e. 32 bits
Roland> where long is 32 and 64 bits where long is 64).  So it would
Roland> not hurt to generically use LONG_MAX, and that would be
Roland> simpler.  I think it is a valid assumption at the moment that
Roland> long == wordsize.  If not, we could also have SSIZE_MAX
Roland> defined conditional on __WORDSIZE, which is still simpler than
Roland> adding a specific definition for particular platforms.

Hi Roland

That sounds good to me, what about the following patch then? The good
thing is that this way we still allow an architecture to override it
if necessary.

Jes

2002-08-02  Jes Sorensen  <jes@trained-monkey.org>

	* posix/bits/posix1_lim.h: #define SSIZE_MAX based on the
	definition of __WORDSIZE.

--- posix/bits/posix1_lim.h~	Mon Jul  9 19:18:00 2001
+++ posix/bits/posix1_lim.h	Fri Aug  2 18:57:24 2002
@@ -127,8 +127,13 @@
 
 
 #ifndef	SSIZE_MAX
+#include <bits/wordsize.h>
+#if __WORDSIZE == 64
+# define SSIZE_MAX	LONG_MAX
+#else
 # define SSIZE_MAX	INT_MAX
 #endif
+#endif
 
 
 /* This value is a guaranteed minimum maximum.