The FBB::repeat function template allows a function or member function to be called a certain number of times. The functions or member functions may define arguments. Arguments to these functions are specified when repeat is called, and are perfectly forwarded by the repeat function template to the (member) function called by repeat.
The first argument of the repeat function template defines the number of times the (member) function must be called.
The FBB::repeat function template are defined inline, allowing the compiler to `optimize away' the repeat function call itself.
template <typename Counter, typename First, typename ...Params>
void repeat(Counter counter, First &&first, Params &&...params);
In this declaration,
#include <iostream>
#include <iterator>
#include <algorithm>
#include "../repeat"
using namespace std;
using namespace FBB;
class Object
{
public:
void member(int argc, char **argv) const;
void member2(size_t &rept, int argc, char **argv);
};
void Object::member(int argc, char **argv) const
{
cout << "member called\n";
copy(argv, argv + argc, ostream_iterator<char const *>(cout, "\n"));
}
void Object::member2(size_t &rept, int argc, char **argv)
{
cout << "member2 called, iteration " << rept++ << "\n";
copy(argv, argv + argc, ostream_iterator<char const *>(cout, "\n"));
}
void fun()
{
cout << "Fun called\n";
}
int main(int argc, char **argv)
{
Object object;
cout << "\n"
"*** The number of arguments determines the repeat-count ***\n\n";
cout << "Fun without arguments:\n";
repeat(argc, fun);
cout << "Object receiving argc and argv:\n";
repeat(argc, object, &Object::member, argc, argv);
cout << "Object receiving argc and argv, showing the iteration count:\n";
size_t count = 0;
repeat(argc, object, &Object::member2, count, argc, argv);
Object const obj;
cout << "Const Object receiving argc and argv:\n";
repeat(argc, obj, &Object::member, argc, argv);
}