30 lines
1.0 KiB
C
30 lines
1.0 KiB
C
/* `INFINITY' constant for IEEE 754 machines.
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Copyright (C) 2004-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _MATH_H
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# error "Never use <bits/inf.h> directly; include <math.h> instead."
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#endif
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/* IEEE positive infinity. */
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#if __GNUC_PREREQ(3,3)
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# define INFINITY (__builtin_inff())
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#else
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# define INFINITY HUGE_VALF
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#endif
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