Physics · C Programming
One of the disadvantages of the 'pass by reference' mechanism is that the called function may inadvertently modify the caller's data. In C++, how can this side effect be prevented while retaining the reference passing mechanism?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By wrapping the function call inside a macro
- 2By declaring the actual parameters as 'const'
- 3By declaring the formal parameters as 'const'✓
- 4By passing pointers instead of references
Correct answer
By declaring the formal parameters as 'const'
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