From 00c364dacbb7b2ec8c1c497fffe300d1d3a0a4b5 Mon Sep 17 00:00:00 2001
From: c9s <yoanlin93@gmail.com>
Date: Mon, 2 Jun 2014 05:55:45 +0800
Subject: [PATCH] const

---
 src/slug.c | 2 +-
 src/slug.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/slug.c b/src/slug.c
index 4714313..55a95be 100644
--- a/src/slug.c
+++ b/src/slug.c
@@ -63,7 +63,7 @@ int r3_slug_check(r3_slug_t *s, char **errstr) {
 }
 
 
-char * r3_slug_to_str(r3_slug_t *s) {
+char * r3_slug_to_str(const r3_slug_t *s) {
     char *str = NULL;
     asprintf(&str, "slug: '%.*s', pattern: '%.*s', path: '%.*s'", s->len, s->begin, s->pattern_len, s->pattern, s->path_len, s->path);
     return str;
diff --git a/src/slug.h b/src/slug.h
index afde660..bf4763f 100644
--- a/src/slug.h
+++ b/src/slug.h
@@ -45,7 +45,7 @@ int r3_slug_check(r3_slug_t *s, char **errstr);
 
 r3_slug_t * r3_slug_parse(const char *needle, int needle_len, char *offset, char **errstr);
 
-char * r3_slug_to_str(r3_slug_t *s);
+char * r3_slug_to_str(const r3_slug_t *s);
 
 void r3_slug_free(r3_slug_t * s);