diff options
Diffstat (limited to 'lib/libc/string')
| -rw-r--r-- | lib/libc/string/memchr.3 | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/lib/libc/string/memchr.3 b/lib/libc/string/memchr.3 index f5d1fe5d5c7f..c50e932d3382 100644 --- a/lib/libc/string/memchr.3 +++ b/lib/libc/string/memchr.3 @@ -34,7 +34,7 @@ .Os .Sh NAME .Nm memchr -.Nd locate byte in byte string +.Nd locate byte in memory object .Sh LIBRARY .Lb libc .Sh SYNOPSIS @@ -51,8 +51,11 @@ locates the first occurrence of .Fa c (converted to an .Vt "unsigned char" ) -in string -.Fa b . +in object +.Fa b , +limited to at most +.Fa len +characters. .Pp The .Fn memrchr @@ -60,16 +63,19 @@ function behaves like .Fn memchr , except that it locates the last occurrence of .Fa c -in string -.Fa b . +in object +.Fa b , +limited to the first +.Fa len +characters. .Sh RETURN VALUES The .Fn memchr and .Fn memrchr -functions -return a pointer to the byte located, -or NULL if no such byte exists within +functions return a pointer to the byte located, or +.Dv NULL +if no such byte exists within .Fa len bytes. .Sh SEE ALSO |