source: trunk/libs/newlib/src/newlib/libm/common/s_infinity.c @ 567

/*
 * infinity () returns the representation of infinity.
 * Added by Cygnus Support.
 */

/*
FUNCTION
        <<infinity>>, <<infinityf>>---representation of infinity

INDEX
        infinity
INDEX
        infinityf

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 */