C Plus PlusSs+

Before and after i++ or ++i before and after evaluation

Prefix (++x) involves more work than postfix (x++), at least on the surface and probably usually.

However, postfix does have it’s uses. The statements … cout << *iter << endl; ++iter; … can be replaced with … cout << *iter++ << endl;

http://www.deanbodenham.com/learn/cpp-googletest.html

$ ~ g++ -pg main.cpp -o my_program

$ ~ ./my_program; gprof call | head

$ ~

$ ~ valgrind ./program

$ ~ g++ -ggdb Main.cpp -o prog

$ ~ gdb prog

(gdb) break <function to stop>

(gdb) run

(gdb) where

(gdb) print <variable name> // check state of variable

template<typename T>

Number<T>::Number(const T& d)

{

theNumber = d;

}

template<class T> ostream& operator<< (ostream& out, const Number<T>& d)

{

out << d.theNumber;

return out;

}

int main()

{

Number<int> inum(10);

cout << inum << endl;

return 0;

}

#include<iostream>

using namespace std;

template <typename T, typename... Args>

void variadico(const T & t, const Args&... rest)

{

}

template<typename T>

ostream & print(ostream & os, const T & t)

{

return os << t << ".\n";

}

template<typename T, typename... Args>

ostream & print(ostream & os, const T & t, const Args&... the_rest)

{

os << t << ", ";

return print(os, the_rest...);

}

int main()

{

print(cout, "a", 3, 'F');

return 0;

}