Subversion Repositories openrisc_2011-10-31

/*

 * infinity () returns the representation of infinity.

 * Added by Cygnus Support.

 */

/*

FUNCTION

        <<infinity>>, <<infinityf>>--representation of infinity

INDEX

        infinity

INDEX

        infinityf

ANSI_SYNOPSIS

        #include <math.h>

        double infinity(void);

        float infinityf(void);

DESCRIPTION

        <<infinity>> and <<infinityf>> return the special number IEEE

        infinity in double- and single-precision arithmetic

        respectively.

PORTABILITY

<<infinity>> and <<infinityf>> are neither standard C nor POSIX.  C and

POSIX require macros HUGE_VAL and HUGE_VALF to be defined in math.h, which

Newlib defines to be infinities corresponding to these archaic infinity()

and infinityf() functions in floating-point implementations which do have

infinities.

QUICKREF

        infinity - pure

*/

#include "fdlibm.h"

#ifndef _DOUBLE_IS_32BITS

        double infinity()

{

        double x;

        INSERT_WORDS(x,0x7ff00000,0);

        return x;

}

#endif /* _DOUBLE_IS_32BITS */