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authorBartosz Golaszewski2015-08-25 13:10:00 +0200
committerDenys Vlasenko2015-08-25 15:04:16 +0200
commit0a4d0e8fbf119e61f7223ac00a42505abf7eb168 (patch)
treeb268f441b0c1053b50bf9e95f3c5bc9c28146d7d
parentb432923e29dcd8c6f3a528bb9d61952de68e790c (diff)
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libbb: add a comment describing the way is_prefixed_with() works
Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com> Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
-rw-r--r--libbb/compare_string_array.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/libbb/compare_string_array.c b/libbb/compare_string_array.c
index 450916c..cdcb271 100644
--- a/libbb/compare_string_array.c
+++ b/libbb/compare_string_array.c
@@ -5,6 +5,11 @@
#include "libbb.h"
+/*
+ * Return NULL if string is not prefixed with key. Return pointer to the
+ * first character in string after the prefix key. If key is an empty string,
+ * return pointer to the beginning of string.
+ */
char* FAST_FUNC is_prefixed_with(const char *string, const char *key)
{
#if 0 /* Two passes over key - probably slower */