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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc3/] [libstdc++-v3/] [testsuite/] [23_containers/] [bitset/] [operations/] [1.cc] - Rev 516
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// 2000-01-15 Anders Widell <awl@hem.passagen.se> // Copyright (C) 2000, 2003, 2009 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 3, 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 COPYING3. If not see // <http://www.gnu.org/licenses/>. #include <string> #include <set> #include <bitset> #include <testsuite_hooks.h> static char original_bits[1024]; static char left_shifted[1024]; static char right_shifted[1024]; char random_bit() { static long x = 1; return ((x = (3432L*x + 6789L) % 9973L) & 1) + '0'; } void initialise(size_t size) { for (size_t i=0; i<size; i++) original_bits[i] = random_bit(); original_bits[size] = '\0'; left_shifted[size] = '\0'; right_shifted[size] = '\0'; } void shift_arrays(size_t shift_step, size_t size) { for (size_t i=shift_step; i<size; i++) { right_shifted[i] = original_bits[i-shift_step]; left_shifted[size-i-1] = original_bits[size+shift_step-i-1]; } for (size_t i=0; i<shift_step && i<size; i++) { right_shifted[i] = '0'; left_shifted[size-i-1] = '0'; } } template <size_t size> bool do_test() { bool test __attribute__((unused)) = true; std::bitset<size> shifted; std::bitset<size> correct; initialise(size); //std::bitset<size> original = std::string(original_bits); std::bitset<size> original = std::bitset<size> (std::string(original_bits)); for (size_t shift_step=0; shift_step==0 || shift_step<size; shift_step++) { shift_arrays(shift_step, size); shifted = original; shifted <<= shift_step; //correct = std::string(left_shifted); correct = std::bitset<size> (std::string(left_shifted)); VERIFY( shifted == correct ); shifted = original; shifted >>= shift_step; //correct = std::string(right_shifted); correct = std::bitset<size> (std::string(right_shifted)); VERIFY( shifted == correct ); } return test; } bool test01() { bool test __attribute__((unused)) = true; VERIFY( do_test<32>() ); VERIFY( do_test<48>() ); VERIFY( do_test<64>() ); VERIFY( do_test<511>() ); VERIFY( do_test<513>() ); VERIFY( do_test<997>() ); return test; } int main() { test01(); return 0; }