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libcxx/test/std/numerics/numarray/valarray.range/begin_non_const.pass.cpp

32 lines
739 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;
// template <class T>
// unspecified1
// begin(valarray<T>& v);
#include <valarray>
#include <cassert>
int main()
{
{
typedef int T;
T a[] = {1, 2, 3, 4, 5};
const unsigned N = sizeof(a)/sizeof(a[0]);
std::valarray<T> v(a, N);
*begin(v) = 10;
assert(v[0] == 10);
}
}