C++ switch numbers

[rrcn]

how can i switch the values of 2 variables in c++?

lets say num1 is 3 and num2 is 5

i want num1 to have the value of 5 and num2 to have the value of 3.

[nothing]

int num1 = 3;
int num2 = 5;

int temp = num1;
num1 = num2;
num2 = temp;

I know there is a function (swap() I think) that does the same thing except you won't need a temporary variable.

[rrcn]

ok, thanks for your help.

much appreciated