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Fix PR116650: check all regs in regrename targets
[official-gcc.git]
/
gcc
/
testsuite
/
gcc.c-torture
/
execute
/
builtins
/
lib
/
strncat.c
blob
7fd334cb4d8e2150811b6cf4dc033707e2f0bbd3
1
extern
void
abort
(
void
);
2
extern
int
inside_main
;
3
4
typedef
__SIZE_TYPE__
size_t
;
5
6
__attribute__
((
__noinline__
))
7
char
*
8
strncat
(
char
*
s1
,
const char
*
s2
,
size_t
n
)
9
{
10
char
*
dest
=
s1
;
11
char
c
=
'\0'
;
12
#ifdef __OPTIMIZE__
13
if
(
inside_main
)
14
abort
();
15
#endif
16
while
(*
s1
)
s1
++;
17
c
=
'\0'
;
18
while
(
n
>
0
)
19
{
20
c
= *
s2
++;
21
*
s1
++ =
c
;
22
if
(
c
==
'\0'
)
23
return
dest
;
24
n
--;
25
}
26
if
(
c
!=
'\0'
)
27
*
s1
=
'\0'
;
28
return
dest
;
29
}