What is passing by reference?

[chinmay.sahoo]

Method of passing arguments to a function which takes parameter of type reference. for example: void swap( int & x, int & y ) { int temp = x; x = y; y = temp; } int a=2, b=3; swap( a, b ); Basically, inside the function there won't be any copy of the arguments "x" and "y" instead they refer to original variables a and b. so no extra memory needed to pass arguments and it is more efficient.

 

[duxte]

The call by reference method of passing arguments to a function copies the reference of an argument into the formal parameter.

 

[Sdgroupkol]

Nice Share keep it up.

 

[mspcarservice]

Passing by reference means the called functions' parameter will be the same as the callers' passed argument (not the value, but the identity - the variable itself).

 

[Davidwatson]

When reference variables are used as formal parameters, this is known as Pass By Reference.

 

[ardmoreorth]

The call by referrals method of moving justifications to the purpose duplicates the referrals of an discussion into the official parameter.

 

[aegisinfoways]

The call by referrals method of moving justifications to the purpose duplicates the referrals of an discussion into the official parameter.