_slash = strrchr((prefix), '/'))
/* Similar to path_join(), but only works for two components, and only the first one may be NULL and returns
- * an alloca() buffer, or possibly a const pointer into the path parameter */
+ * an alloca() buffer, or possibly a const pointer into the path parameter. */
#define prefix_roota(root, path) \
({ \
const char* _path = (path), *_root = (root), *_ret; \
size_t _l; \
while (_path[0] == '/' && _path[1] == '/') \
_path ++; \
- if (empty_or_root(_root)) \
+ if (isempty(_root)) \
_ret = _path; \
else { \
_l = strlen(_root) + 1 + strlen(_path) + 1; \