Which C++ standard introduced the if constexpr feature?

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C. C++17

Answer: (C) C++17

The if constexpr feature was introduced in C++17.

It allows a condition to be evaluated at compile time in appropriate template contexts.

For example:

if constexpr (condition) { ... }

C++17 also introduced several other useful language and library features, making it another important stage in modern C++ development.

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