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In C++, is the ?: operator faster than if()...else statements? Are there any differences between them in compiled code?
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There's a different emphasis: An if / else statement emphasises the branching first and what's to be done is secondary, while a ternary operator emphasises what's to be done over the selection of the values to do it with.
One great time to use the ternary operator instead of the if / else statement is whenever you would otherwise use a simple if / else statement. Anything that can fit in a single line of code is a great time to use the ternary operator because it's much more compact and easy to read.
The conditional operator (? :) is a ternary operator (it takes three operands).
It is not faster. There is one difference when you can initialize a constant variable depending on some expression: const int x = (a<b) ?
It is not faster. There is one difference when you can initialize a constant variable depending on some expression:
const int x = (a<b) ? b : a; You can't do the same with if-else.
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Depends on your compiler, but on any modern compiler there is generally no difference. It's something you shouldn't worry about. Concentrate on the maintainability of your code.
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