How does the performance of a switch-case statement compare to if-else if-else chains, especially when dealing with a large number of conditions?
- switch-case is always slower than if-else chains.
- switch-case and if-else chains have similar performance.
- if-else chains are always slower than switch-case.
- Performance is dependent on the compiler optimization.
While the performance of switch-case statements and if-else chains can depend on various factors, often, the switch-case statement is more optimized by compilers when dealing with a large number of conditions. The reason being, the compiler can optimize switch-case into a jump table or an array of branch instructions. However, it's always crucial to profile code in practice as the optimization might vary with compiler implementations and versions.
Loading...
Related Quiz
- When a class B is inherited publicly from a class A, then the protected members of class A will become _______ in class B.
- A function template enables you to write a single function that can handle data of _______ type(s).
- In tail recursion, the recursive call is the _______ action to be performed in the function.
- In C++11 and later, the keyword _______ can be used in a range-based for loop to avoid copying elements.
- The expression a×b can be represented as a _______ b in C++.