cxx/test/numerics/numarray/template.gslice.array/gslice.array.assign/gslice_array.pass.cpp
2010-05-11 21:36:01 +00:00

82 lines
2.6 KiB
C++

//===----------------------------------------------------------------------===//
//
// The 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 gslice_array
// const gslice_array& operator=(const gslice_array& ga) 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, 16, 17, 18, 19, 20, 21, 22, 23,
24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35,
36, 37, 38, 39, 40};
int a2[] = { -0, -1, -2, -3, -4, -5, -6, -7, -8, -9, -10, -11,
-12, -13, -14, -15, -16, -17, -18, -19, -20, -21, -22, -23,
-24, -25, -26, -27, -28, -29, -30, -31, -32, -33, -34, -35,
-36, -37};
std::valarray<int> v1(a1, sizeof(a1)/sizeof(a1[0]));
const std::valarray<int> v2(a2, sizeof(a2)/sizeof(a2[0]));
std::size_t sz[] = {2, 4, 3};
std::size_t st[] = {19, 4, 1};
typedef std::valarray<std::size_t> sizes;
typedef std::valarray<std::size_t> strides;
v1[std::gslice(3, sizes(sz, sizeof(sz)/sizeof(sz[0])),
strides(st, sizeof(st)/sizeof(st[0])))]
= v2[std::gslice(3, sizes(sz, sizeof(sz)/sizeof(sz[0])),
strides(st, sizeof(st)/sizeof(st[0])))];
assert(v1.size() == 41);
assert(v1[ 0] == 0);
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] == -11);
assert(v1[12] == -12);
assert(v1[13] == -13);
assert(v1[14] == 14);
assert(v1[15] == -15);
assert(v1[16] == -16);
assert(v1[17] == -17);
assert(v1[18] == 18);
assert(v1[19] == 19);
assert(v1[20] == 20);
assert(v1[21] == 21);
assert(v1[22] == -22);
assert(v1[23] == -23);
assert(v1[24] == -24);
assert(v1[25] == 25);
assert(v1[26] == -26);
assert(v1[27] == -27);
assert(v1[28] == -28);
assert(v1[29] == 29);
assert(v1[30] == -30);
assert(v1[31] == -31);
assert(v1[32] == -32);
assert(v1[33] == 33);
assert(v1[34] == -34);
assert(v1[35] == -35);
assert(v1[36] == -36);
assert(v1[37] == 37);
assert(v1[38] == 38);
assert(v1[39] == 39);
assert(v1[40] == 40);
}