Reported-by: Stefan Kanthak <stefan.kanthak@xxxxxxxx> Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> --- man3/strstr.3 | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/man3/strstr.3 b/man3/strstr.3 index e085409c2..41ee87489 100644 --- a/man3/strstr.3 +++ b/man3/strstr.3 @@ -61,6 +61,14 @@ but ignores the case of both arguments. .SH RETURN VALUE These functions return a pointer to the beginning of the located substring, or NULL if the substring is not found. +.PP +Note the special case: +If +.I needle +is the empty string, +the return value is always +.I haystack +itself. .SH ATTRIBUTES For an explanation of the terms used in this section, see .BR attributes (7). -- 2.32.0
