mirror of
https://github.com/autc04/Retro68.git
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106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
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// Copyright (C) 2009 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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// This 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
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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// { dg-require-effective-target dfp }
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// ISO/IEC TR 24733 3.2.6 Conversion to generic floating-point type.
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#include <decimal/decimal>
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#include <testsuite_hooks.h>
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using namespace std::decimal;
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void
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conversion_to_generic_float_32 ()
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{
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std::decimal::decimal32 d32(123);
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float f;
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double d;
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long double ld;
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f = decimal32_to_float (d32);
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VERIFY (f == 123.F);
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d = decimal32_to_double (d32);
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VERIFY (d == 123.);
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ld = decimal32_to_long_double (d32);
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VERIFY (ld == 123.L);
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d32++;
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f = decimal_to_float (d32);
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VERIFY (f == 124.F);
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d = decimal_to_double (d32);
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VERIFY (d == 124.);
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ld = decimal_to_long_double (d32);
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VERIFY (ld == 124.L);
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}
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void
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conversion_to_generic_float_64 ()
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{
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std::decimal::decimal64 d64(234);
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float f;
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double d;
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long double ld;
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f = decimal64_to_float (d64);
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VERIFY (f == 234.F);
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d = decimal64_to_double (d64);
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VERIFY (d == 234.);
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ld = decimal64_to_long_double (d64);
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VERIFY (ld == 234.L);
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d64++;
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f = decimal_to_float (d64);
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VERIFY (f == 235.F);
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d = decimal_to_double (d64);
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VERIFY (d == 235.);
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ld = decimal_to_long_double (d64);
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VERIFY (ld == 235.L);
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}
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void
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conversion_to_generic_float_128 ()
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{
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std::decimal::decimal128 d128(345);
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float f;
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double d;
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long double ld;
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f = decimal128_to_float (d128);
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VERIFY (f == 345.F);
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d = decimal128_to_double (d128);
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VERIFY (d == 345.);
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ld = decimal128_to_long_double (d128);
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VERIFY (ld == 345.L);
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d128++;
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f = decimal_to_float (d128);
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VERIFY (f == 346.F);
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d = decimal_to_double (d128);
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VERIFY (d == 346.);
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ld = decimal_to_long_double (d128);
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VERIFY (ld == 346.L);
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}
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int
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main ()
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{
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conversion_to_generic_float_32 ();
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conversion_to_generic_float_64 ();
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conversion_to_generic_float_128 ();
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}
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