1 files changed, 19 insertions, 0 deletions
diff --git a/include/common.h b/include/common.h
new file mode 100644
index 0000000..86f1f9c
--- /dev/null
+++ b/include/common.h
@@ -0,0 +1,19 @@
+#pragma once
+#include <types.h>
+
+static inline size_t strlen(const char *s) {
+    size_t len = 0;
+    while (*s++) {
+        ++len;
+    }
+    return len;
+}
+static inline int strcmp(const char *str1, const char* str2) {
+    while (*str1 && (*str1 == *str2)) {
+        ++str1;
+        ++str2;
+    }
+    return *(const unsigned char *)str1 - *(const unsigned char *)str2;
+}
+
+