X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Ffstrcmp.h;h=e2f72fd54bf48fc655dc66de38e1307ed2a91c94;hb=98171ec274fdcd518baf812ad0dd8933d2eee8ee;hp=4671c55d07168eeb2c30970e78f30007003ffa16;hpb=76eb5db6bb71874428b959b90f167040d4b54200;p=gnulib.git

diff --git a/lib/fstrcmp.h b/lib/fstrcmp.h
index 4671c55d0..e2f72fd54 100644
--- a/lib/fstrcmp.h
+++ b/lib/fstrcmp.h
@@ -1,12 +1,13 @@
 /* Fuzzy string comparison.
-   Copyright (C) 1995, 2000, 2002-2003, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1995, 2000, 2002-2003, 2006, 2008-2013 Free Software
+   Foundation, Inc.
 
    This file was written by Peter Miller <pmiller@agso.gov.au>
 
-This program is free software; you can redistribute it and/or modify
+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.
+the Free Software Foundation; either version 3 of the License, 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
@@ -14,8 +15,7 @@ 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #ifndef _FSTRCMP_H
 #define _FSTRCMP_H
@@ -25,9 +25,19 @@ extern "C" {
 #endif
 
 /* Fuzzy compare of S1 and S2.  Return a measure for the similarity of S1
-   and S1.  The higher the result, the more similar the strings are.  */
+   and S1.  The higher the result, the more similar the strings are.
+   The result is bounded between 0 (meaning very dissimilar strings) and
+   1 (meaning identical strings).  */
 extern double fstrcmp (const char *s1, const char *s2);
 
+/* Like fstrcmp (S1, S2), except that if the result is < LOWER_BOUND, an
+   arbitrary other value < LOWER_BOUND can be returned.  */
+extern double fstrcmp_bounded (const char *s1, const char *s2,
+                               double lower_bound);
+
+/* A shortcut for fstrcmp.  Avoids a function call.  */
+#define fstrcmp(s1,s2) fstrcmp_bounded (s1, s2, 0.0)
+
 #ifdef __cplusplus
 }
 #endif