i am trying to create a function that parallelize a for. I am using the Thread of the SFML and std::bind with template.
Here is what i tried.
#include <SFML/System.hpp>
#include <iostream>
#include <functional>
sf::Mutex mutex;
template <typename F>
void For_Multitread(F Function, std::vector<int>& A);
template <typename F>
void Execute_For(F Function, std::vector<int>& A, int Depart, int Fin);
void Compute(int& Number);
template <typename F>
void For_Multitread(F Function, std::vector<int>& A)
{
for (int Thread = 0; Thread < 2; Thread++)
{
sf::Thread thread(std::bind(&Execute_For, Function, A, Thread * 5, (Thread+1)*5));
thread.launch();
}
mutex.lock();
for (int i = 0; i < 10; ++i)
std::cout << A[i] << std::endl;
mutex.unlock();
}
template <typename F>
void Execute_For(F Function, std::vector<int>& A, int Depart, int Fin)
{
for (int i = Depart; i < Fin; ++i)
{
Function(A[i]);
}
}
void Compute(int& Number)
{
Number++;
}
int main()
{
std::vector<int> A;
for (int i =0; i < 10; i++)
A.push_back(i);
For_Multitread(&Compute, A);
return 0;
}
The error is
no matching function for call to 'bind(<unresolved overloaded function type>, void (*&)(int&), std::vector<int>&, int, int)
Did i miss something really important ?
Execute_For
is a function template, therefore you need to either supply it with type template arguments:or use a
static_cast
: