Last version before deleting Makefile and CmakeLists.txt

nostr_core/utils.h

@@ -0,0 +1,20 @@
+/*
+ * NOSTR Core Library - Utilities
+ * 
+ * General utility functions used across multiple NIPs
+ */
+
+#ifndef UTILS_H
+#define UTILS_H
+
+#include <stddef.h>
+
+// Error codes (imported from nip001.h)
+#define NOSTR_SUCCESS                           0
+#define NOSTR_ERROR_INVALID_INPUT              -1
+
+// Utility function declarations
+void nostr_bytes_to_hex(const unsigned char* bytes, size_t len, char* hex);
+int nostr_hex_to_bytes(const char* hex, unsigned char* bytes, size_t len);
+
+#endif // UTILS_H