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HEAD
syscons util remove use kbdcontrol & vidcontrol instead
[unix-history]
/
lib
/
libF77
/
r_mod.c
#include
"f2c.h"
#ifdef KR_headers
#ifdef IEEE_drem
double
drem
();
#else
double
floor
();
#endif
double
r_mod
(
x
,
y
)
real
*
x
, *
y
;
#else
#ifdef IEEE_drem
double
drem
(
double
,
double
);
#else
#undef abs
#include
"math.h"
#endif
double
r_mod
(
real
*
x
,
real
*
y
)
#endif
{
#ifdef IEEE_drem
double
xa
,
ya
,
z
;
if
((
ya
= *
y
) <
0
.)
ya
= -
ya
;
z
=
drem
(
xa
= *
x
,
ya
);
if
(
xa
>
0
) {
if
(
z
<
0
)
z
+=
ya
;
}
else if
(
z
>
0
)
z
-=
ya
;
return
z
;
#else
double
quotient
;
if
( (
quotient
= (
double
)*
x
/ *
y
) >=
0
)
quotient
=
floor
(
quotient
);
else
quotient
= -
floor
(-
quotient
);
return
(*
x
- (*
y
) *
quotient
);
#endif
}