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HEAD
add legacy getloadavg api
[musl.git]
/
src
/
math
/
copysign.c
blob
b09331b6876e74ebb5c12bdc9a0ee183ee5cc136
1
#include
"libm.h"
2
3
double
copysign
(
double
x
,
double
y
) {
4
union
{
double
f
;
uint64_t
i
;}
ux
={
x
},
uy
={
y
};
5
ux
.
i
&= -
1ULL
/
2
;
6
ux
.
i
|=
uy
.
i
&
1ULL
<<
63
;
7
return
ux
.
f
;
8
}