fix up compress.h

so that it can be used with c++ more conveniently

compress.c

@@ -16,6 +16,29 @@
 #define debug(...)
 #endif
 
+// compression method values for backref_t and rle_t
+typedef enum {
+	rle_8   = 0,
+	rle_16  = 1,
+	rle_seq = 2,
+
+	lz_norm = 0,
+	lz_rot  = 1,
+	lz_rev  = 2
+} method_e;
+
+// used to store and compare backref candidates
+typedef struct {
+	uint16_t offset, size;
+	method_e method;
+} backref_t;
+
+// used to store RLE candidates
+typedef struct {
+	uint16_t size, data;
+	method_e method;
+} rle_t;
+
 uint8_t    rotate (uint8_t);
 rle_t      rle_check (uint8_t*, uint8_t*, uint32_t, int);
 backref_t  ref_search (uint8_t*, uint8_t*, uint32_t, int);

compress.h

@@ -9,40 +9,26 @@
 #ifndef _COMPRESS_H
 #define _COMPRESS_H
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdio.h>
 #include <stdint.h>
-#include <stdlib.h>
 #include <string.h>
 
 #define DATA_SIZE     65536
 #define RUN_SIZE      32
 #define LONG_RUN_SIZE 1024
 
-// compression method values for backref_t and rle_t
-typedef enum {
-	rle_8   = 0,
-	rle_16  = 1,
-	rle_seq = 2,
-
-	lz_norm = 0,
-	lz_rot  = 1,
-	lz_rev  = 2
-} method_e;
-
-// used to store and compare backref candidates
-typedef struct {
-	uint16_t offset, size;
-	method_e method;
-} backref_t;
-
-// used to store RLE candidates
-typedef struct {
-	uint16_t size, data;
-	method_e method;
-} rle_t;
-
 size_t pack   (uint8_t *unpacked, uint32_t inputsize, uint8_t *packed, int fast);
 size_t unpack (uint8_t *packed, uint8_t *unpacked);
 
 size_t unpack_from_file (FILE *file, unsigned int offset, uint8_t *unpacked);
 
+#ifdef __cplusplus
+}
+#endif
+
+// end include guard
 #endif

exhal.c

@@ -10,6 +10,7 @@
 */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include "compress.h"
 
 int main (int argc, char **argv) {

inhal.c

@@ -11,6 +11,7 @@
 */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <time.h>
 #include "compress.h"