Language in C 面接の質問と回答

Question: How do I write code that executes certain function only at program termination?

Answer: Use atexit( ) function as shown in following program.

#include <stdlib.h>
main( )
{
int ch ;
void fun ( void ) ;
atexit ( fun ) ;
// code
}
void fun( void )
{
printf ( "nTerminate program......" ) ;
getch( ) ;
}