* Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
*/
-/* concatenate path and file name to new allocation buffer,
- * not addition '/' if path name already have '/'
-*/
+/* Concatenate path and filename to new allocated buffer.
+ * Add '/' only as needed (no duplicate // are produced).
+ * If path is NULL, it is assumed to be "/".
+ * filename should not be NULL.
+ */
#include "libbb.h"
-char *concat_path_file(const char *path, const char *filename)
+char* FAST_FUNC concat_path_file(const char *path, const char *filename)
{
char *lc;