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/* Test for positive or negative infinity.
Copyright (C) 2007-2020 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, see <https://www.gnu.org/licenses/>. */
/* Written by Ben Pfaff <blp@gnu.org>, 2008. */
#include <config.h>
#include <float.h>
int
gl_isinff (float x)
{
return x < -FLT_MAX || x > FLT_MAX;
}
int
gl_isinfd (double x)
{
return x < -DBL_MAX || x > DBL_MAX;
}
int
gl_isinfl (long double x)
{
return x < -LDBL_MAX || x > LDBL_MAX;
}
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