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1 // Copyright (C) 2020 Free Software Foundation, Inc.
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2 //
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3 // This file is part of the GNU ISO C++ Library. This library is free
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4 // software; you can redistribute it and/or modify it under the
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5 // terms of the GNU General Public License as published by the
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6 // Free Software Foundation; either version 3, or (at your option)
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7 // any later version.
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8
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9 // This library is distributed in the hope that it will be useful,
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10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 // GNU General Public License for more details.
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13
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14 // You should have received a copy of the GNU General Public License along
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15 // with this library; see the file COPYING3. If not see
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16 // <http://www.gnu.org/licenses/>.
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17
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18 // { dg-do run }
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19
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20 #include <algorithm>
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21 #include <testsuite_hooks.h>
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22
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23 void
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24 test01()
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25 {
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26 volatile int i[] = { 0, 1, 2, 3 };
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27 volatile int j[] = { 1, 2, 3 };
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28 int k[] = { 2, 3, 4 };
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29
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30 VERIFY( std::equal(i+1, i+4, j) ); // volatile, volatile
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31 VERIFY( std::equal(i+2, i+4, k) ); // volatile, unqual
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32 VERIFY( ! std::equal(k, k+3, i+1) ); // unqual, volatile
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33
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34 const volatile int* cj = j;
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35 VERIFY( ! std::equal(cj, cj+2, cj+1) ); // const volatile, const volatile
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36 VERIFY( std::equal(cj, cj+3, i+1) ); // const volatile, volatile
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37 VERIFY( ! std::equal(i, i+2, cj) ); // volatile, const volatile
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38 VERIFY( std::equal(cj+1, cj+3, k) ); // const volatile, unqual
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39 VERIFY( ! std::equal(k, k+2, cj) ); // unqual, const volatile
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40 const int* ck = k;
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41 VERIFY( std::equal(ck, ck+2, i+2) ); // const, volatile
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42 VERIFY( ! std::equal(i, i+3, ck) ); // volatile, const
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43 VERIFY( std::equal(cj+1, cj+3, ck) ); // const volatile, const
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44 VERIFY( ! std::equal(ck, ck+1, cj) ); // const, const volatile
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45
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46 #if __cplusplus > 201703L
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47 using std::ranges::equal;
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48 VERIFY( equal(i+1, i+4, j, j+3) ); // volatile, volatile
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49 VERIFY( equal(i+2, i+4, k, k+2) ); // volatile, unqual
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50 VERIFY( ! equal(k, k+3, i+1, i+4) ); // unqual, volatile
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51
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52 VERIFY( ! equal(cj, cj+2, cj+1, cj+3) );// const volatile, const volatile
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53 VERIFY( equal(cj, cj+3, i+1, i+4) ); // const volatile, volatile
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54 VERIFY( ! equal(i, i+2, cj, cj+2) ); // volatile, const volatile
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55 VERIFY( equal(cj+1, cj+3, k, k+2) ); // const volatile, unqual
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56 VERIFY( ! equal(k, k+2, cj, cj+2) ); // unqual, const volatile
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57
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58 VERIFY( equal(ck, ck+2, i+2, i+4) ); // const, volatile
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59 VERIFY( ! equal(i, i+3, ck, ck+3) ); // volatile, const
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60 VERIFY( equal(cj+1, cj+3, ck, ck+2) ); // const volatile, const
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61 VERIFY( ! equal(ck, ck+1, cj, cj+1) ); // const, const volatile
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62 #endif
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63 }
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64
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65 int
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66 main()
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67 {
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68 test01();
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69 }
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