X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fxstrtod.c;h=099f537266c7a55b9d29f715df3bcf2ec2861382;hb=378873e8508590d356a540e5db32592750fb18b8;hp=838c5c463213ad4d805db6d36d26c2054eab186c;hpb=386767027dea095d9b5985d55243d46788e1d960;p=gnulib.git

diff --git a/lib/xstrtod.c b/lib/xstrtod.c
index 838c5c463..099f53726 100644
--- a/lib/xstrtod.c
+++ b/lib/xstrtod.c
@@ -1,9 +1,28 @@
+/* xstrtod.c - error-checking interface to strtod
+   Copyright (C) 1996, 1999 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+/* Written by Jim Meyering.  */
+
 #ifdef HAVE_CONFIG_H
-#include <config.h>
+# include <config.h>
 #endif
 
 #ifdef STDC_HEADERS
-#include <stdlib.h>
+# include <stdlib.h>
 #else
 double strtod ();
 #endif
@@ -11,9 +30,13 @@ double strtod ();
 #include <errno.h>
 #include <stdio.h>
 #include <limits.h>
-#include <ctype.h>
 #include "xstrtod.h"
 
+/* An interface to strtod that encapsulates all the error checking
+   one should usually perform.  Like strtod, but upon successful
+   conversion put the result in *RESULT and return zero.  Return
+   non-zero and don't modify *RESULT upon any failure.  */
+
 int
 xstrtod (str, ptr, result)
      const char *str;
@@ -45,4 +68,3 @@ xstrtod (str, ptr, result)
   *result = val;
   return fail;
 }
-