#ifndef HEADER_IDEA_H
#define HEADER_IDEA_H
-#ifdef __cplusplus
-extern "C" {
-#endif
-
#ifdef NO_IDEA
#error IDEA is disabled.
#endif
#define IDEA_BLOCK 8
#define IDEA_KEY_LENGTH 16
+#ifdef __cplusplus
+extern "C" {
+#endif
+
typedef struct idea_key_st
{
IDEA_INT data[9][6];