X-Git-Url: https://plomlompom.com/repos/foo.html?a=blobdiff_plain;f=src%2Freadwrite.h;h=a4b0973ea2d68e95d70c35a8e9888356d58661e4;hb=867fe8e2358c8d71919b144f97e4ab272b8f4ebe;hp=28bc3ab2316f5a0dfb1e667aec337edf57c90417;hpb=e9d8b1aca776341c9cdaa2ea6406336661d82a76;p=plomrogue

diff --git a/src/readwrite.h b/src/readwrite.h
index 28bc3ab..a4b0973 100644
--- a/src/readwrite.h
+++ b/src/readwrite.h
@@ -1,5 +1,12 @@
-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);
+#ifndef READWRITE_H
+#define READWRITE_H
 
+#include <stdio.h>
+#include <stdint.h>
+
+extern uint16_t read_uint16_bigendian(FILE * file);
+extern uint32_t read_uint32_bigendian(FILE * file);
+extern void write_uint16_bigendian(uint16_t x, FILE * file);
+extern void write_uint32_bigendian(uint32_t x, FILE * file);
+
+#endif