# HG changeset patch
# User Bruno Haible <bruno@clisp.org>
# Date 1280271196 -7200
# Node ID 957a79f455ba34b1ee89538734f30aa03d21df12
# Parent  078abad70fe8a1cf2c590c39192cb138cf18539c
mbspcasecmp: Fix function specification.

diff --git a/ChangeLog b/ChangeLog
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-07-27  Bruno Haible  <bruno@clisp.org>
+
+	mbspcasecmp: Fix function specification.
+	* lib/string.in.h (mbspcasecmp): Fix specification comment.
+	* lib/mbspcasecmp.c (mbspcasecmp): Likewise.
+	Reported by Eric Blake <eblake@redhat.com>.
+
 2010-07-26  Paul R. Eggert  <eggert@cs.ucla.edu>
 
 	timespec: use cast and not conditional, as truncation isn't possible
diff --git a/lib/mbspcasecmp.c b/lib/mbspcasecmp.c
--- a/lib/mbspcasecmp.c
+++ b/lib/mbspcasecmp.c
@@ -1,5 +1,5 @@
 /* Case-insensitive string comparison function.
-   Copyright (C) 1998-1999, 2005-2010 Free Software Foundation, Inc.
+   Copyright (C) 1998-1999, 2005-2008, 2010 Free Software Foundation, Inc.
    Written by Bruno Haible <bruno@clisp.org>, 2007.
 
    This program is free software: you can redistribute it and/or modify
@@ -28,11 +28,10 @@
 
 /* Compare the initial segment of the character string STRING consisting of
    at most mbslen (PREFIX) characters with the character string PREFIX,
-   ignoring case, returning less than, equal to or greater than zero if this
-   initial segment is lexicographically less than, equal to or greater than
-   PREFIX.
-   Note: This function may, in multibyte locales, return 0 if STRING is of
-   smaller length than PREFIX!  */
+   ignoring case.  If the two match, return a pointer to the first byte
+   after this prefix in STRING.  Otherwise, return NULL.
+   Note: This function may, in multibyte locales, return non-NULL if STRING
+   is of smaller length than PREFIX!  */
 char *
 mbspcasecmp (const char *string, const char *prefix)
 {
diff --git a/lib/string.in.h b/lib/string.in.h
--- a/lib/string.in.h
+++ b/lib/string.in.h
@@ -770,11 +770,10 @@
 #if @GNULIB_MBSPCASECMP@
 /* Compare the initial segment of the character string STRING consisting of
    at most mbslen (PREFIX) characters with the character string PREFIX,
-   ignoring case, returning less than, equal to or greater than zero if this
-   initial segment is lexicographically less than, equal to or greater than
-   PREFIX.
-   Note: This function may, in multibyte locales, return 0 if STRING is of
-   smaller length than PREFIX!
+   ignoring case.  If the two match, return a pointer to the first byte
+   after this prefix in STRING.  Otherwise, return NULL.
+   Note: This function may, in multibyte locales, return non-NULL if STRING
+   is of smaller length than PREFIX!
    Unlike strncasecmp(), this function works correctly in multibyte
    locales.  */
 _GL_EXTERN_C char * mbspcasecmp (const char *string, const char *prefix)