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39 lines
1 KiB
C
39 lines
1 KiB
C
/* Test for positive or negative infinity.
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Copyright (C) 2007-2015 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, see <http://www.gnu.org/licenses/>. */
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/* Written by Ben Pfaff <blp@gnu.org>, 2008. */
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#include <config.h>
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#include <float.h>
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int
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gl_isinff (float x)
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{
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return x < -FLT_MAX || x > FLT_MAX;
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}
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int
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gl_isinfd (double x)
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{
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return x < -DBL_MAX || x > DBL_MAX;
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}
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int
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gl_isinfl (long double x)
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{
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return x < -LDBL_MAX || x > LDBL_MAX;
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}
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