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#include "SDL_internal.h"

/*

* Written by J.T. Conklin <jtc@netbsd.org>.

* Changed to return -1 for -Inf by Ulrich Drepper <drepper@cygnus.com>.

* Public domain.

*/

/*

* isinf(x) returns 1 is x is inf, -1 if x is -inf, else 0;

* no branching!

*/

#include "math.h"

#include "math_private.h"

int __isinf(double x)

{

int32_t hx,lx;

EXTRACT_WORDS(hx,lx,x);

lx |= (hx & 0x7fffffff) ^ 0x7ff00000;

lx |= -lx;

return ~(lx >> 31) & (hx >> 30);

}

libm_hidden_def(__isinf)

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