The noexcept specifier in C++ is used to indicate that a function does not throw any exceptions. When a function is declared with noexcept, it informs the compiler that the function will not throw any exceptions during its execution.

Syntax

void myFunction() noexcept {
    // function body
}

Example

Consider the following example where a function is declared with noexcept specifier:

void myFunction() noexcept {
    // function body
}

In this example, the myFunction is declared as noexcept, indicating that the function does not throw any exceptions.

Benefits

Using noexcept specifier can provide several benefits such as:

• Allowing the compiler to generate more efficient code by optimizing exception-handling mechanisms.
• Providing the ability to use certain standard library functions that have different behavior when used with a noexcept expression.

References

• C++ Reference - noexcept specifier
• cppreference.com - noexcept specifier