* doprnt.c (doprnt): Don't assume string length fits in 'int'.

Tighten new eassert a bit.

src/ChangeLog

+2012-07-04  Paul Eggert  <eggert@cs.ucla.edu>
+
+	* doprnt.c (doprnt): Don't assume string length fits in 'int'.
+	Tighten new eassert a bit.
+
 2012-07-04  Dmitry Antipov  <dmantipov@yandex.ru>
 
 	Fix compilation with --enable-gcc-warnings and -O1

src/doprnt.c

@@ -135,8 +135,8 @@ ptrdiff_t
 doprnt (char *buffer, ptrdiff_t bufsize, const char *format,
 	const char *format_end, va_list ap)
 {
-  const char *fmt = format;	/* Pointer into format string */
-  register char *bufptr = buffer; /* Pointer into output buffer.. */
+  const char *fmt = format;	/* Pointer into format string.  */
+  char *bufptr = buffer;	/* Pointer into output buffer.  */
 
   /* Use this for sprintf unless we need something really big.  */
   char tembuf[DBL_MAX_10_EXP + 100];
@@ -150,7 +150,7 @@ doprnt (char *buffer, ptrdiff_t bufsize, const char *format,
   /* Buffer we have got with malloc.  */
   char *big_buffer = NULL;
 
-  register int tem = -1;
+  ptrdiff_t tem = -1;
   char *string;
   char fixed_buffer[20];	/* Default buffer for small formatting. */
   char *fmtcpy;
@@ -368,7 +368,7 @@ doprnt (char *buffer, ptrdiff_t bufsize, const char *format,
 
 	      /* Copy string into final output, truncating if no room.  */
 	    doit:
-	      eassert (tem != -1);
+	      eassert (0 <= tem);
 	      /* Coming here means STRING contains ASCII only.  */
 	      if (STRING_BYTES_BOUND < tem)
 		error ("Format width or precision too large");