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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2016-10-30 10:21:29 -0400
committerGitHub <noreply@github.com>2016-10-30 10:21:29 -0400
commit0470289b6e93be7a65b1b3b2a2cc829bd20e08c8 (patch)
tree8b4a8e3daa5f1305d9d97c3a94eb9547de50458f /src/basic/path-util.c
parent87b6ba21b5ca4aa9764f7e5a9495441348be0209 (diff)
tests: clarify test_path_startswith return value (#4508)
A pendant for #4481.
Diffstat (limited to 'src/basic/path-util.c')
-rw-r--r--src/basic/path-util.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/basic/path-util.c b/src/basic/path-util.c
index 0f5b20cf05..fd38f51c4c 100644
--- a/src/basic/path-util.c
+++ b/src/basic/path-util.c
@@ -354,6 +354,16 @@ char* path_startswith(const char *path, const char *prefix) {
assert(path);
assert(prefix);
+ /* Returns a pointer to the start of the first component after the parts matched by
+ * the prefix, iff
+ * - both paths are absolute or both paths are relative,
+ * and
+ * - each component in prefix in turn matches a component in path at the same position.
+ * An empty string will be returned when the prefix and path are equivalent.
+ *
+ * Returns NULL otherwise.
+ */
+
if ((path[0] == '/') != (prefix[0] == '/'))
return NULL;