Implemented memory functions

1 files changed, 13 insertions, 2 deletions

diff --git a/src/lib/strings.c b/src/lib/strings.c
index 8f62391..795caa2 100644
--- a/src/lib/strings.c
+++ b/src/lib/strings.c
@@ -1,6 +1,6 @@
 #include "../lib/strings.h"
 
-unsigned long strlen(char* s) {
+unsigned long strlen(string_t s) {
 	unsigned long len = 0;
 	while (s[len] != 0) {
 		len += 1;
@@ -8,7 +8,7 @@ unsigned long strlen(char* s) {
 	return len;
 }
 
-unsigned char strcmp(char* a, char* b) {
+unsigned char strcmp(string_t a, string_t b) {
 	unsigned long idx = 0;
 	while (a[idx] != 0 && b[idx] != 0) {
 		if (a[idx] != b[idx]) {
@@ -18,3 +18,14 @@ unsigned char strcmp(char* a, char* b) {
 	}
 	return a[idx] == b[idx];
 }
+
+unsigned char strcmpn(string_t a, string_t b, unsigned int n) {
+	unsigned long idx = 0;
+	while (a[idx] != 0 && b[idx] != 0 && idx+1 < n) {
+		if (a[idx] != b[idx]) {
+			return 0;
+		}
+		idx += 1;
+	}
+	return a[idx] == b[idx];
+}