102 lines
2.7 KiB
C++
102 lines
2.7 KiB
C++
// Copyright (C) 2009-2020 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 3.2.2.2 Conversion from floating-point type (decimal32).
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// ISO/IEC TR 24733 3.2.3.2 Conversion from floating-point type (decimal64).
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// ISO/IEC TR 24733 3.2.4.2 Conversion from floating-point type (decimal128).
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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_from_float_32 ()
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{
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decimal32 d32(123);
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decimal64 d64(234);
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decimal128 d128(345);
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float f = 456.F;
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double d = 567.;
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long double ld = 678.L;
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d32 = (decimal32) d64;
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VERIFY (d32 == make_decimal32 (234LL, 0));
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d32 = (decimal32) d128;
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VERIFY (d32 == make_decimal32 (345LL, 0));
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d32 = (decimal32) f;
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VERIFY (d32 == make_decimal32 (456LL, 0));
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d32 = (decimal32) d;
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VERIFY (d32 == make_decimal32 (567LL, 0));
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d32 = (decimal32) ld;
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VERIFY (d32 == make_decimal32 (678LL, 0));
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}
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void
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conversion_from_float_64 ()
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{
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decimal32 d32(123);
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decimal64 d64(234);
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decimal128 d128(345);
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float f = 456.F;
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double d = 567.;
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long double ld = 678.L;
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d64 = d32;
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VERIFY (d64 == make_decimal64 (123LL, 0));
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d64 = (decimal64) d128;
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VERIFY (d64 == make_decimal64 (345LL, 0));
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d64 = (decimal64) f;
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VERIFY (d64 == make_decimal64 (456LL, 0));
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d64 = (decimal64) d;
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VERIFY (d64 == make_decimal64 (567LL, 0));
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d64 = (decimal64) ld;
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VERIFY (d64 == make_decimal64 (678LL, 0));
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}
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void
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conversion_from_float_128 ()
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{
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decimal32 d32(123);
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decimal64 d64(234);
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decimal128 d128(345);
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float f = 456.F;
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double d = 567.;
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long double ld = 678.L;
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d128 = d32;
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VERIFY (d128 == make_decimal128 (123LL, 0));
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d128 = d64;
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VERIFY (d128 == make_decimal128 (234LL, 0));
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d128 = (decimal128) f;
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VERIFY (d128 == make_decimal128 (456LL, 0));
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d128 = (decimal128) d;
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VERIFY (d128 == make_decimal128 (567LL, 0));
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d128 = (decimal128) ld;
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VERIFY (d128 == make_decimal128 (678LL, 0));
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}
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int
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main ()
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{
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conversion_from_float_32 ();
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conversion_from_float_64 ();
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conversion_from_float_128 ();
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}
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