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HEAD
2001-03-30 H.J. Lu <hjl@gnu.org>
[binutils.git]
/
libiberty
/
strncmp.c
blob
b3b9de16b10c450f1869de56bd19385669215b76
1
/* strncmp -- compare two strings, stop after n bytes.
2
This function is in the public domain. */
3
4
#include <ansidecl.h>
5
#ifdef __STDC__
6
#include <stddef.h>
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#else
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#define size_t unsigned long
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#endif
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int
12
strncmp
(
s1
,
s2
,
n
)
13
const char
*
s1
, *
s2
;
14
register
size_t
n
;
15
{
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register
unsigned char
u1
,
u2
;
17
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while
(
n
-- >
0
)
19
{
20
u1
= (
unsigned char
) *
s1
++;
21
u2
= (
unsigned char
) *
s2
++;
22
if
(
u1
!=
u2
)
23
return
u1
-
u2
;
24
if
(
u1
==
'\0'
)
25
return
0
;
26
}
27
return
0
;
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}