mark functions with const and pure attributes

[gnulib.git] / lib / filevercmp.c

diff --git a/lib/filevercmp.c b/lib/filevercmp.c
index f6ed248..fd9e9f4 100644 (file)
--- a/lib/filevercmp.c
+++ b/lib/filevercmp.c
@@ -80,7 +80,7 @@ order (unsigned char c)
    section on the `Version' control field.  This version of the code
    implements that from s5.6.12 of Debian Policy v3.8.0.1
    http://www.debian.org/doc/debian-policy/ch-controlfields.html#s-f-Version */
-static int
+static int _GL_ATTRIBUTE_PURE
 verrevcmp (const char *s1, size_t s1_len, const char *s2, size_t s2_len)
 {
   size_t s1_pos = 0;