I am trying to build a vector of GLfloat of size 772538368. While doing push_back() I am getting bad_alloc error.
After checking this question, I tried to reserve() memory for the vector. However, now I am getting the same error on the attempt of reserve() itself.
On my machine, vector.max_size: 1073741823, which is bigger than what I need. In other details, I am using VS 2015 on Windows 10. Also please find the relevant code snippets below.
What should I do to resolve this?
Relevant code snippet:
int main() {
vector<GLfloat> targetVector;
targetVector.reserve(772538368); //Attempt2 to reserve. Also tried resize()
vector<vector<vector<GLshort>>> my3DimensionalData;
//build my3DimensionalData //no problem here.
//targetVector.reserve(772538368); //Attempt1 to reserve.
for (GLint rowIndex = 0; rowIndex < numberOfRows; rowIndex++)
{
for (GLint colIndex = 0; colIndex < numberOfCols; colIndex++)
{
for (GLint depthIndex = 0; depthIndex < numberOfDepths; depthIndex++)
{
//perform gymnastic here on my3DimensionalData and get data.
/*initially I was getting bad_alloc while pushing back
*elements in the following block.
*This led to Attempt1 and Attempt2 as shown above.
*/
targetVector.push_back(data1);
targetVector.push_back(data2);
...
targetVector.push_back(data7);
}
}
}
}
You're most likely going to need a 64 bit build. You need over 3 GB of contiguous memory, and that is almost all of your 4GB memory space.
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