update

include/b_string.h

@@ -0,0 +1,14 @@
+#ifndef B_STRING
+#define B_STRING
+
+#include <stddef.h>
+
+typedef struct b_string_{
+    size_t len;
+    unsigned char str[];
+}b_string_t;
+
+b_string_t  *alloc_b_string(size_t len, const char* str);
+void        free_b_string(b_string_t *b_str);
+
+#endif