134 lines
4.3 KiB
C++
134 lines
4.3 KiB
C++
// Copyright (C) 2009-2017 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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// { dg-options "-Wno-pedantic" }
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// ISO/IEC TR 24733 3.2.5 Initialization from coefficient and exponent.
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#include <decimal/decimal>
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#include <cstring>
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#include <testsuite_hooks.h>
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#define PASTE2(A,B) A ## B
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#define PASTE(A,B) PASTE2(A,B)
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#define TESTVAL_NEG(COEFF,ESIGN,EXP,SUF,NUM,SIZE) \
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x = PASTE(PASTE(PASTE(PASTE(PASTE(COEFF,.),E),ESIGN),EXP),SUF); \
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sll = PASTE(COEFF,LL); \
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i = ESIGN EXP; \
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a = PASTE(make_decimal,32) (sll, i); \
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b = PASTE(make_decimal,32) (PASTE(COEFF,LL), ESIGN EXP); \
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VERIFY ((std::memcmp ((void *)&x, (void *)&a, SIZE) == 0) \
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&& (std::memcmp ((void *)&x, (void *)&b,SIZE) == 0));
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#define TESTVAL_NONNEG(COEFF,ESIGN,EXP,SUF,NUM,SIZE) \
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x = PASTE(PASTE(PASTE(PASTE(PASTE(COEFF,.),E),ESIGN),EXP),SUF); \
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sll = PASTE(COEFF,LL); \
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ull = PASTE(COEFF,ULL); \
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i = ESIGN EXP; \
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a = PASTE(make_decimal,32) (sll, i); \
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b = PASTE(make_decimal,32) (PASTE(COEFF,LL), ESIGN EXP); \
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c = PASTE(make_decimal,32) (ull, i); \
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d = PASTE(make_decimal,32) (PASTE(COEFF,ULL), ESIGN EXP); \
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VERIFY ((std::memcmp ((void *)&x, (void *)&a, SIZE) == 0) \
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&& (std::memcmp ((void *)&x, (void *)&b,SIZE) == 0) \
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&& (std::memcmp ((void *)&x, (void *)&c,SIZE) == 0) \
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&& (std::memcmp ((void *)&x, (void *)&d,SIZE) == 0));
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using namespace std::decimal;
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void
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make_decimal_32 (void)
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{
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decimal32 a, b, c, d;
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float x __attribute__((mode(SD)));
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int i;
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unsigned long sz = sizeof (decimal32);
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volatile long long sll;
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volatile unsigned long long ull;
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TESTVAL_NONNEG (0, +, 0, DF, 32, sz);
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TESTVAL_NONNEG (5, +, 1, DF, 32, sz);
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TESTVAL_NONNEG (50, +, 0, DF, 32, sz);
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TESTVAL_NONNEG (500, +, 0, DF, 32, sz);
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TESTVAL_NEG (-25, -, 3, DF, 32, sz)
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TESTVAL_NEG (-500, +, 0, DF, 32, sz);
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TESTVAL_NONNEG (999999, +, 91, DF, 32, sz);
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TESTVAL_NONNEG (1, -, 9, DF, 32, sz);
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TESTVAL_NONNEG (1, -, 90, DF, 32, sz);
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TESTVAL_NONNEG (1, -, 95, DF, 32, sz);
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TESTVAL_NONNEG (1, -, 101, DF, 32, sz);
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TESTVAL_NEG (-1, -, 101, DF, 32, sz);
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}
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void
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make_decimal_64 (void)
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{
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decimal64 a, b, c, d;
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float x __attribute__((mode(DD)));
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int i;
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unsigned long sz = sizeof (decimal64);
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volatile long long sll;
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volatile unsigned long long ull;
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TESTVAL_NONNEG (0, +, 0, DF, 64, sz);
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TESTVAL_NONNEG (5, +, 1, DF, 64, sz);
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TESTVAL_NONNEG (50, +, 0, DF, 64, sz);
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TESTVAL_NONNEG (500, +, 0, DF, 64, sz);
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TESTVAL_NEG (-25, -, 3, DF, 64, sz)
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TESTVAL_NEG (-500, +, 0, DF, 64, sz);
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TESTVAL_NONNEG (999999, +, 91, DF, 64, sz);
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TESTVAL_NONNEG (1, -, 9, DF, 64, sz);
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TESTVAL_NONNEG (1, -, 90, DF, 64, sz);
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TESTVAL_NONNEG (1, -, 95, DF, 64, sz);
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TESTVAL_NONNEG (1, -, 101, DF, 64, sz);
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TESTVAL_NEG (-1, -, 101, DF, 64, sz);
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}
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void
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make_decimal_128 (void)
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{
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decimal128 a, b, c, d;
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float x __attribute__((mode(TD)));
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int i;
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unsigned long sz = sizeof (decimal128);
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volatile long long sll;
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volatile unsigned long long ull;
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TESTVAL_NONNEG (0, +, 0, DF, 128, sz);
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TESTVAL_NONNEG (5, +, 1, DF, 128, sz);
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TESTVAL_NONNEG (50, +, 0, DF, 128, sz);
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TESTVAL_NONNEG (500, +, 0, DF, 128, sz);
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TESTVAL_NEG (-25, -, 3, DF, 128, sz)
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TESTVAL_NEG (-500, +, 0, DF, 128, sz);
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TESTVAL_NONNEG (999999, +, 91, DF, 128, sz);
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TESTVAL_NONNEG (1, -, 9, DF, 128, sz);
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TESTVAL_NONNEG (1, -, 90, DF, 128, sz);
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TESTVAL_NONNEG (1, -, 95, DF, 128, sz);
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TESTVAL_NONNEG (1, -, 101, DF, 128, sz);
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TESTVAL_NEG (-1, -, 101, DF, 128, sz);
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}
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int
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main ()
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{
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make_decimal_32 ();
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make_decimal_64 ();
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make_decimal_128 ();
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}
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