gcc/libstdc++-v3/testsuite/26_numerics/c_math.cc

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// 1999-06-05
// Gabriel Dos Reis <dosreis@cmla.ens-cachan.fr>
// Copyright (C) 2000, 1999 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library 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 library 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 library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
#include <cmath>
#include <debug_assert.h>
// test compilation.
int
test01()
{
float a = 1.f;
float b;
std::modf(a, &b);
return 0;
}
// need more extravagant checks than this, of course, but this used to core...
int
test02()
{
sin(static_cast<float>(0));
return 0;
}
// as did this.
int
test03()
{
double powtest = pow(2., 0);
return 0;
}
// this used to abort.
int
test04()
{
bool test = true;
float x[2] = {1, 2};
float y = 3.4;
std::modf(y, &x[0]);
VERIFY(x[1] == 2);
return 0;
}
int
main()
{
test01();
test02();
test03();
test04();
return 0;
}