abort

 

C

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Program support utilities

Program termination
abort exit quick_exit (C++11) _Exit (C++11)	atexit at_quick_exit (C++11) EXIT_SUCCESSEXIT_FAILURE
Communicating with the environment
system	getenv
Signals
signal raise sig_atomic_t	SIG_DFLSIG_IGN SIG_ERR
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jmp_buf

 

Defined in header <stdlib.h>
void abort();

Causes abnormal program termination unless SIGABRT is being caught by a signal handler passed to signal and the handler does not return.

Functions passed to atexit() are not called. Whether open resources such as files are closed is implementation defined. Implementation defined status is returned to the host environment that indicates unsuccessful execution.

Parameters

(none)

Return value

(none)

Example

Run this code

#include <stdio.h>      /* FILE, fopen, fclose, fprintf */
#include <stdlib.h>     /* abort */
 
int main(void) 
{
    FILE *fp = fopen("data.txt","r");
    if (fp == NULL) {
       fprintf(stderr, "error opening file data.txt in function main()\n");
       abort();
    }
 
    /* Normal processing continues here. */
    fclose(fp);
    printf("Normal Return\n");
    return 0;
}

Output:

error opening file data.txt in function main()

See also

exit	causes normal program termination with cleaning up (function)
atexit	registers a function to be called on exit() invocation (function)
quick_exit (C99)	causes normal program termination without completely cleaning up (function)
C++ documentation for abort