1 files changed, 32 insertions, 0 deletions
diff --git a/src/aplwc_internal.h b/src/aplwc_internal.h
new file mode 100644
index 0000000..f80c8ab
--- /dev/null
+++ b/src/aplwc_internal.h
@@ -0,0 +1,32 @@
+#ifndef APLWC_INTERNAL_H
+#define APLWC_INTERNAL_H
+
+#define UNUSED_PARAMETER(arg) ((void)arg)
+
+#define RETURN_ERROR(aplwc, rc, msg) do{ \
+	Aplwc *_p = (aplwc);      \
+	AplwcRc _r = APLWC_##rc;  \
+	if(_p) _p->last_error = _r; \
+	return _r;                \
+	}while(0)
+
+#define NELEM(x) (sizeof(x)/sizeof(x[0]))
+
+#include <stddef.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+struct Aplwc {
+	AplwcRc last_error;
+	char last_error_msg[64];
+};
+
+/* errors.c */
+const char *rc_to_string(AplwcRc);
+
+/* malloc.c */
+void *malloc_zero(size_t);
+
+#endif /* APLWC_INTERNAL_H */