+#ifndef READWRITE_H
+#define READWRITE_H
+
+#include <stdio.h>
+#include <stdint.h>
+
uint16_t read_uint16_bigendian(FILE * file);
void write_uint16_bigendian(uint16_t x, FILE * file);
uint32_t read_uint32_bigendian(FILE * file);
void write_uint32_bigendian(uint32_t x, FILE * file);
+#endif