1 files changed, 2 insertions, 2 deletions
diff --git a/src/kmp.c b/src/kmp.c
index d5923bf..f74dcf0 100644
--- a/src/kmp.c
+++ b/src/kmp.c
@@ -15,7 +15,7 @@ int* init_array(int size) {
   return arr;
 }
 
-int kmp(char* t,size_t tlen, char* p,size_t plen) {
+int kmp(const char* t,size_t tlen, const char* p,size_t plen) {
   int m = plen;
   int n = tlen;
 
@@ -46,7 +46,7 @@ int kmp(char* t,size_t tlen, char* p,size_t plen) {
   return -1;
 }
 
-void failure(char* p, int* f) {
+void failure(const char* p, int* f) {
   f[0] = 0;
   int i = 1;
   int j = 0;