cxx/test/numerics/numarray/valarray.nonmembers/valarray.transcend/abs_valarray.pass.cpp
Howard Hinnant bc8d3f97eb libcxx initial import
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@103490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-11 19:42:16 +00:00

35 lines
909 B
C++

//===----------------------------------------------------------------------===//
//
// ÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊÊThe LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <valarray>
// template<class T> class valarray;
// template<class T>
// valarray<T>
// abs(const valarray<T>& x);
#include <valarray>
#include <cassert>
int main()
{
{
typedef double T;
T a1[] = {1.5, -2.5, 3.4, -4.5, -5.0};
T a3[] = {1.5, 2.5, 3.4, 4.5, 5.0};
const unsigned N = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N);
std::valarray<T> v3 = abs(v1);
assert(v3.size() == v1.size());
for (int i = 0; i < v3.size(); ++i)
assert(v3[i] == a3[i]);
}
}