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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <valarray>
// template <class T> class mask_array
// void mask_array& operator=(const mask_array& ma) const;
#include <valarray>
#include <cassert>
int main()
{
{
int a1[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15};
const std::size_t N1 = sizeof(a1)/sizeof(a1[0]);
bool b1[N1] = {true, false, false, true, true, false,
false, true, false, false, false, true};
int a2[] = {-1, -2, -3, -4, -5, -6, -7, -8};
const std::size_t N2 = sizeof(a2)/sizeof(a2[0]);
bool b2[N2] = {true, false, true, true,
false, false, true, true};
std::valarray<int> v1(a1, N1);
const std::valarray<int> v2(a2, N2);
std::valarray<bool> vb1(b1, N1);
std::valarray<bool> vb2(b2, N2);
v1[vb1] = v2[vb2];
assert(v1.size() == 16);
assert(v1[ 0] == -1);
assert(v1[ 1] == 1);
assert(v1[ 2] == 2);
assert(v1[ 3] == -3);
assert(v1[ 4] == -4);
assert(v1[ 5] == 5);
assert(v1[ 6] == 6);
assert(v1[ 7] == -7);
assert(v1[ 8] == 8);
assert(v1[ 9] == 9);
assert(v1[10] == 10);
assert(v1[11] == -8);
assert(v1[12] == 12);
assert(v1[13] == 13);
assert(v1[14] == 14);
assert(v1[15] == 15);
}
// Test return value of assignment
{
int a1[] = {0, 1, 2};
int a2[] = {3, 4, 5};
bool b1[] = {true, false, true};
std::valarray<int> v1(a1, 3);
std::valarray<int> v2(a2, 3);
std::valarray<bool> const vb1(b1, 3);
std::mask_array<int> m1 = v1[vb1];
std::mask_array<int> const m2 = v2[vb1];
std::mask_array<int> const & r = (m1 = m2);
assert(&r == &m1);
}
}
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