Home > Article > Backend Development > Here are a few title options, keeping in mind the question format and the article\'s focus: **Option 1 (General & Emphasizing Return):** * **Why Use the `[[noreturn]]` Attribute in C ? Does It
Despite the presence of the void return type, which typically signifies the absence of a return value, the [[noreturn]] attribute serves a critical purpose in the C programming language. This attribute is intended for use with functions that effectively terminate the control flow and prevent the function from returning to the caller.
How [[noreturn]] Functions Behave
Functions marked as [[noreturn]] cannot return to the caller under any circumstance. This can occur due to various mechanisms, such as:
Purpose of the [[noreturn]] Attribute
The [[noreturn]] attribute provides the following benefits:
How to Use the [[noreturn]] Attribute
The [[noreturn]] attribute is placed before the function declaration, as seen in the example provided in the question:
[[ noreturn ]] void f() { throw "error"; // OK }
In this example, the f function throws an exception, which effectively prevents it from returning to the caller. Therefore, marking f as [[noreturn]] is appropriate.
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