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Arm Compiler armclang Reference Guide : __attribute__((noreturn)) function attribute

__attribute__((noreturn)) function attribute

This attribute asserts that a function never returns.

Usage

Use this attribute to reduce the cost of calling a function that never returns, such as exit(). If a noreturn function returns to its caller, the behavior is undefined.

Restrictions

The return address is not preserved when calling the noreturn function. This limits the ability of a debugger to display the call stack.

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