1 //===----------------------------------------------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is dual licensed under the MIT and the University of Illinois Open 6 // Source Licenses. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 10 // <valarray> 11 12 // template <class T> class mask_array 13 14 // void mask_array& operator=(const mask_array& ma) const; 15 16 #include <valarray> 17 #include <cassert> 18 19 int main() 20 { 21 { 22 int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}; 23 const std::size_t N1 = sizeof(a1)/sizeof(a1[0]); 24 bool b1[N1] = {true, false, false, true, true, false, 25 false, true, false, false, false, true}; 26 int a2[] = {-1, -2, -3, -4, -5, -6, -7, -8}; 27 const std::size_t N2 = sizeof(a2)/sizeof(a2[0]); 28 bool b2[N2] = {true, false, true, true, 29 false, false, true, true}; 30 std::valarray<int> v1(a1, N1); 31 const std::valarray<int> v2(a2, N2); 32 std::valarray<bool> vb1(b1, N1); 33 std::valarray<bool> vb2(b2, N2); 34 v1[vb1] = v2[vb2]; 35 assert(v1.size() == 16); 36 assert(v1[ 0] == -1); 37 assert(v1[ 1] == 1); 38 assert(v1[ 2] == 2); 39 assert(v1[ 3] == -3); 40 assert(v1[ 4] == -4); 41 assert(v1[ 5] == 5); 42 assert(v1[ 6] == 6); 43 assert(v1[ 7] == -7); 44 assert(v1[ 8] == 8); 45 assert(v1[ 9] == 9); 46 assert(v1[10] == 10); 47 assert(v1[11] == -8); 48 assert(v1[12] == 12); 49 assert(v1[13] == 13); 50 assert(v1[14] == 14); 51 assert(v1[15] == 15); 52 } 53 // Test return value of assignment 54 { 55 int a1[] = {0, 1, 2}; 56 int a2[] = {3, 4, 5}; 57 bool b1[] = {true, false, true}; 58 std::valarray<int> v1(a1, 3); 59 std::valarray<int> v2(a2, 3); 60 std::valarray<bool> const vb1(b1, 3); 61 std::mask_array<int> m1 = v1[vb1]; 62 std::mask_array<int> const m2 = v2[vb1]; 63 std::mask_array<int> const & r = (m1 = m2); 64 assert(&r == &m1); 65 } 66 } 67
