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gnu
/
gcc
/
refs/tags/misc/start
/
.
/
gcc
/
f
/
runtime
/
libF77
/
d_sign.c
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#include
"f2c.h"
#ifdef
KR_headers
double
d_sign
(
a
,
b
)
doublereal
*
a
,
*
b
;
#else
double
d_sign
(
doublereal
*
a
,
doublereal
*
b
)
#endif
{
double
x
;
x
=
(*
a
>=
0
?
*
a
:
-
*
a
);
return
(
*
b
>=
0
?
x
:
-
x
);
}