Q:
What is the difference between pass by value by reference in c and pass by reference in c?
belongs to collection: Embedded C interview questions and answers (2022)
Embedded C interview questions and answers (2022)
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C programming
Answer:
Pass By Value:
Pass By Reference :
- In Pass by reference, an address of the variable is passed to a function.
- Whatever changes made to the formal parameter will affect the value of actual parameters(a variable whose address is passed).
- Both formal and actual parameters shared the same memory location.
- it is useful when you required to returns more than 1 value.
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