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memchr.c
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/*
* memchr.c
*/
#include
<stddef.h>
#include
<string.h>
void
*
memchr
(
const
void
*
s
,
int
c
,
size_t
n
)
{
const
unsigned
char
*
sp
=
s
;
while
(
n
--
)
{
if
(
*
sp
==
(
unsigned
char
)
c
)
return
(
void
*)
sp
;
}
return
NULL
;
}