1 files changed, 8 insertions, 0 deletions
diff --git a/src/Utility/Utility.c b/src/Utility/Utility.c
new file mode 100644
index 0000000..8e5af92
--- /dev/null
+++ b/src/Utility/Utility.c
@@ -0,0 +1,8 @@
+#include "Utility.h"
+
+int hex_to_int(char c) {
+    if (c >= '0' && c <= '9') return c - '0';
+    if (c >= 'a' && c <= 'f') return c - 'a' + 10;
+    if (c >= 'A' && c <= 'F') return c - 'A' + 10;
+    return -1;
+}