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libcxx/test/std/numerics/numarray/template.valarray/valarray.access/access.pass.cpp

34 lines
822 B
C++

//===----------------------------------------------------------------------===//
//
// 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 valarray;
// value_type& operator[](size_t i);
#include <valarray>
#include <cassert>
int main()
{
{
typedef int T;
T a[] = {5, 4, 3, 2, 1};
const unsigned N = sizeof(a)/sizeof(a[0]);
std::valarray<T> v(a, N);
for (unsigned i = 0; i < N; ++i)
{
assert(v[i] == a[i]);
v[i] = i;
assert(v[i] == static_cast<int>(i));
}
}
}