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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 valarray;
// valarray shift(int i) const;
#include <valarray>
#include <cassert>
int main()
{
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = v1.shift(0);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {2, 3, 4, 5, 6, 7, 8, 9, 10, 0};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = v1.shift(1);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {10, 0, 0, 0, 0, 0, 0, 0, 0, 0};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = v1.shift(9);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = v1.shift(90);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = v1.shift(-1);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = v1.shift(-9);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = v1.shift(-90);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
const unsigned N1 = 0;
std::valarray<T> v1;
std::valarray<T> v2 = v1.shift(-90);
assert(v2.size() == N1);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {8, 10, 12, 14, 16, 18, 20, 0, 0, 0};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = (v1 + v1).shift(3);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
{
typedef int T;
T a1[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
T a2[] = {0, 0, 0, 2, 4, 6, 8, 10, 12, 14};
const unsigned N1 = sizeof(a1)/sizeof(a1[0]);
std::valarray<T> v1(a1, N1);
std::valarray<T> v2 = (v1 + v1).shift(-3);
assert(v2.size() == N1);
for (unsigned i = 0; i < N1; ++i)
assert(v2[i] == a2[i]);
}
}
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