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| 23.12.1.exit |
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| Item | Value | | Header file | stdlib.h | | Declaration | void exit(int exit_code); | | Function | causes immediate, normal termination of a program. |
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Termination functions registered by atexit() are called, and any open files are flushed and closed. |
- The value of exit_code is passed to the calling process.
- If the value of exit_code is zero, or EXIT_SUCCESS, normal program termination is assumed.
- A nonzero value, or EXIT_FAILURE, is used to indicate an implementation-defined error.
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#include <stdlib.h>
#include <stdio.h>
int main(void)
{
char choice;
do {
printf("Enter names (E)\n");
printf("Delete name (D)\n");
printf("Print (P)\n");
printf("Quit (Q)\n");
choice = getchar();
} while(!strchr("EDPQ", toupper(choice)));
if(choice=='Q') exit(0);
return choice;
}
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