Functions in C, Lecture 07, Call by Value & Call by Reference | C Programming | Bengali
Call by Value
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This method copies the actual value of an argument into the formal parameter of the function. In this case, changes made to the parameter inside the function have no effect on the argument.
Call by Reference
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This method copies the address of an argument into the formal parameter. Inside the function, the address is used to access the actual argument used in the call. This means that changes made to the parameter affect the argument.