Non-returning function

 

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The C programming language, as of C11, supports non-returning functions with the built-in type _Noreturn (see _Noreturn). When the header <stdnoreturn.h> is included, the non-returning function is also accessible as noreturn.

Macros

Macro name	Expands to
noreturn	_Noreturn

Example

Run this code

#include <stdlib.h>
#include <stdio.h>
 
noreturn void stop_now() {
  abort();
}
 
int main(void)
{
  printf("Preparing to stop...\n");
 
  stop_now();
 
  printf("This code is never executed.\n");
 
  return EXIT_SUCCESS;
 
}

Possible output:

Preparing to stop...
Abort

See also

C++ documentation for noreturn