#include "stdafx.h"
using namespace std;
using namespace concurrency;
typedef array<float, 1> FloatArray;
typedef unique_ptr<FloatArray> UPFloatArray;
typedef array_view<float, 1> FloatArrayView;
const int buffSize = 10;
void compute(FloatArray& buff)
{
parallel_for_each(
concurrency::extent<1>(buffSize),
[&buff](index<1> idx) restrict(amp)
{
buff[idx + buffSize] = buff[idx] * 2.0f;
}
);
}
int _tmain(int argc, _TCHAR* argv[])
{
auto buff = UPFloatArray(new FloatArray(buffSize * 2));
auto input = buff->section(0, buffSize);
auto output = buff->section(buffSize, buffSize);
for (int i = 0; i < buffSize; i++)
{
input[i] = i;
}
compute(*buff);
output.refresh();
for (int i = 0; i < buffSize; i++)
{
cout << i << ": " << output[i] << endl;
}
cout << "Press any ...";
getchar();
return 0;
}
If I remove trailing "f" in here:
buff[idx] * 2.0f;
like
buff[idx] * 2.0;
The compiled program crashes whit this exception:
Unhandled exception at at 0x7635B9BC in ConsoleCPPAndAMPTests.exe: Microsoft C++ exception: Concurrency::runtime_exception at memory location 0x003DF004.
