pebble/third_party/jerryscript/jerry-libm/finite.c
2025-01-27 11:38:16 -08:00

42 lines
1.3 KiB
C

/* Copyright 2016 Samsung Electronics Co., Ltd.
* Copyright 2016 University of Szeged
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is based on work under the following copyright and permission
* notice:
*
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunSoft, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
*
* @(#)s_finite.c 1.3 95/01/18
*/
#include "jerry-libm-internal.h"
/* finite(x) returns 1 is x is finite, else 0;
* no branching!
*/
int
finite (double x)
{
int hx;
hx = __HI (x);
return (unsigned) ((hx & 0x7fffffff) - 0x7ff00000) >> 31;
} /* finite */