Re: snprintf function portability

[Paul Eggert]

Thanks for the suggestion.  How about the following patch instead?
I tried to tighten up the wording a bit.

2001-08-16  Paul Eggert  <address@hidden>

        * autoconf.texi (Function Portability): Add snprintf.
        This rewords a suggestion by Kevin Ryde.

ndex: autoconf.texi
===================================================================
RCS file: /cvsroot/autoconf/autoconf/doc/autoconf.texi,v
retrieving revision 1.507
diff -u -r1.507 autoconf.texi
--- autoconf.texi       2001/08/17 00:42:44     1.507
+++ autoconf.texi       2001/08/17 01:20:10
@@ -3251,6 +3251,18 @@
 additions, please help us keeping it as complete as possible
 
 @table @asis
address@hidden @code{snprintf}
address@hidden @fuindex snprintf
address@hidden @code{snprintf}
address@hidden @fuindex vsnprintf
address@hidden @code{vsnprintf}
+The ISO C99 standard says that if the output array isn't big enough and if
+no other errors occur, @code{snprintf} and @code{vsnprintf} truncate the
+output and return the number of bytes that ought to have been produced.
+Some older systems return the truncated length (e.g., GNU C Library
+2.0.x or IRIX 6.5), some a negative value (e.g., earlier GNU C Library),
+and some the buffer length without truncation (e.g., Solaris 7).
+
 @item @code{sprintf}