man/man3/strstr.3: Compare strstr(3) to memmem(3)

Signed-off-by: Alejandro Colomar <alx@kernel.org>

diff --git a/man/man3/strstr.3 b/man/man3/strstr.3
index ea091e066f3435ca2edc2ff40bf8b54efdc5ebb1..c04d99d2d8835426f06cafc927122da81e209bab 100644 (file)
--- a/man/man3/strstr.3
+++ b/man/man3/strstr.3
@@ -30,6 +30,14 @@ in the string
 .IR haystack .
 The terminating null bytes (\[aq]\[rs]0\[aq]) are not compared.
 .P
+It is equivalent to
+.P
+.in +4n
+.EX
+memmem(haystack, strlen(haystack), needle, strlen(needle))
+.EE
+.in
+.P
 The
 .BR strcasestr ()
 function is like