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ulib
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musl
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src
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math
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fmax.c
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#include
<math.h>
double
fmax
(
double
x
,
double
y
)
{
if
(
isnan
(
x
))
return
y
;
if
(
isnan
(
y
))
return
x
;
/* handle signed zeros, see C99 Annex F.9.9.2 */
if
(
signbit
(
x
)
!=
signbit
(
y
))
return
signbit
(
x
)
?
y
:
x
;
return
x
<
y
?
y
:
x
;
}