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 gslice_array 13 14 // void operator=(const valarray<value_type>& v) const; 15 16 #include <valarray> 17 #include <cassert> 18 19 int main() 20 { 21 int a1[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 22 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 23 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 24 36, 37, 38, 39, 40}; 25 int a2[] = { -0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11, 26 -12, -13, -14, -15, -16, -17, -18, -19, -20, -21, -22, -23}; 27 std::valarray<int> v1(a1, sizeof(a1)/sizeof(a1[0])); 28 std::valarray<int> v2(a2, sizeof(a2)/sizeof(a2[0])); 29 std::size_t sz[] = {2, 4, 3}; 30 std::size_t st[] = {19, 4, 1}; 31 typedef std::valarray<std::size_t> sizes; 32 typedef std::valarray<std::size_t> strides; 33 v1[std::gslice(3, sizes(sz, sizeof(sz)/sizeof(sz[0])), 34 strides(st, sizeof(st)/sizeof(st[0])))] = v2; 35 assert(v1.size() == 41); 36 assert(v1[ 0] == 0); 37 assert(v1[ 1] == 1); 38 assert(v1[ 2] == 2); 39 assert(v1[ 3] == 0); 40 assert(v1[ 4] == -1); 41 assert(v1[ 5] == -2); 42 assert(v1[ 6] == 6); 43 assert(v1[ 7] == -3); 44 assert(v1[ 8] == -4); 45 assert(v1[ 9] == -5); 46 assert(v1[10] == 10); 47 assert(v1[11] == -6); 48 assert(v1[12] == -7); 49 assert(v1[13] == -8); 50 assert(v1[14] == 14); 51 assert(v1[15] == -9); 52 assert(v1[16] == -10); 53 assert(v1[17] == -11); 54 assert(v1[18] == 18); 55 assert(v1[19] == 19); 56 assert(v1[20] == 20); 57 assert(v1[21] == 21); 58 assert(v1[22] == -12); 59 assert(v1[23] == -13); 60 assert(v1[24] == -14); 61 assert(v1[25] == 25); 62 assert(v1[26] == -15); 63 assert(v1[27] == -16); 64 assert(v1[28] == -17); 65 assert(v1[29] == 29); 66 assert(v1[30] == -18); 67 assert(v1[31] == -19); 68 assert(v1[32] == -20); 69 assert(v1[33] == 33); 70 assert(v1[34] == -21); 71 assert(v1[35] == -22); 72 assert(v1[36] == -23); 73 assert(v1[37] == 37); 74 assert(v1[38] == 38); 75 assert(v1[39] == 39); 76 assert(v1[40] == 40); 77 } 78
