Which is better practice?
This is just a contrived example. I'm just wondering whether its better to pass a function's return value straight to another function that has a const reference parameter or create a variable beforehand.
Example this is my test function prototype
And say otherFunction() returns an int value then which method is better?
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In method 1 every time I use my parameter inside testFunction() will it call otherFunction, hence wasting memory, or will it have stored the return value of otherFunction?
Example this is my test function prototype
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And say otherFunction() returns an int value then which method is better?
1
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2
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In method 1 every time I use my parameter inside testFunction() will it call otherFunction, hence wasting memory, or will it have stored the return value of otherFunction?
| In method 1 every time I use my parameter inside testFunction() will it call otherFunction |
No, otherFunction() will be executed once, its return value (a nameless temporary object of type int) will be used to initialize the testFunction's parameter, and then testFunction() will begin execution.
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