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Method 2 is faster, about 1/3, 1/4 ... it's not negligible for a lot of processing

thanks :)

and, the expression "pass by reference" in C langage is a malapropism...I read that php language use automatic passing reference, this functionnality is integrated in C++11 ?

Finaly, the reference simplify the use of pointers ?

hello,I think that your 2 codes are equals after compilation, but, expect other response :)

Hello,

I have a question : in C language, can we pass value by reference, as we do in C++ language ?

For example :
I know the method with pointers :
int myfunction (int *var) //like that
...