f2clib.c File Reference

#include "f2c.h"
#include "math.h"

Include dependency graph for f2clib.c:

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Functions
integer	i_nint (real *x)
integer	pow_ii (integer *ap, integer *bp)
double	r_sign (real *a, real *b)

Function Documentation

i_nint()

integer i_nint

(

real *

x

)

Definition at line 80 of file f2clib.c.

Referenced by placea_(), r_sign(), voicin_(), and vparms_().

{
return( (integer)((*x)>=0 ?
 floor(*x + .5) : -floor(.5 - *x)) );
}

pow_ii()

integer pow_ii	(	integer *	ap,
		integer *	bp
	)

Definition at line 30 of file f2clib.c.

References a, b, and r_sign().

Referenced by decode_(), and encode_().

{
 integer pow, x, n;
 unsigned long u;

 x = *ap;
 n = *bp;

 if (n <= 0) {
 if (n == 0 || x == 1)
 return 1;
 if (x != -1)
 return x == 0 ? 0 : 1/x;
 n = -n;
 }
 u = n;
 for(pow = 1; ; )
 {
 if(u & 01)
 pow *= x;
 if(u >>= 1)
 x *= x;
 else
 break;
 }
 return(pow);
 }

r_sign()

double r_sign	(	real *	a,
		real *	b
	)

Definition at line 64 of file f2clib.c.

References a, and i_nint().

Referenced by onset_(), pow_ii(), and vparms_().

{
double x;
x = (*a >= 0 ? *a : - *a);
return( *b >= 0 ? x : -x);
}