_cexit

Perform exit cleanup without terminating the program.

Defined in header <process.h>

Syntax

#include <process.h>
void _cexit(void);

Portability

Remarks

_cexit performs the same cleanup as exit, except that it does not close files or terminate the calling process. Buffered output (waiting to be output) is written, any registered "exit functions" (posted with atexit) are called, and interrupt vectors altered by the startup code are restored.

Return value

None.

See also

• abort
• atexit
• _cexit
• exec
• exit
• exit
• _dos_keep
• signal
• spawn

Example

#include <process.h>
#include <io.h>
#include <fcntl.h>
#include <stdio.h>
#include <dos.h>

mainO
1f
    int fd;
    char c;

    if  ((fd = open("_cexit.c",0_RDONLY)) < 0)  {
        printf ("Unable to open _cexit.c for reading\n") ;
        return  1;
    }
    if  (read(fd,&c,l) != 1)
        printf ("Unable to read from open file handle  %d before _cexit\n",fd);
    else
        printf ("Successfully read from open file handle  %d before _cexit\n",fd) ;
    printf ( "Interrupt zero vector before _cexit = %Fp\n",_dos_getvect(0));
    _cexit 0 ;
    if  (read(fd,&c,l) != 1)
        printf ("Unable to read from open file handle  %d after _cexit\n",fd);
    else
        printf ("Successfully read from open file handle  %d after _cexit\n",fd);
    printf ("Interrupt zero vector after _cexit = %Fp\n" ,_dos_getvect(0));
    return 0;

Differences from modern implementations

Nothing recorded yet.

Modern references

• Microsoft C runtime (search)

These are search links, not yet checked by hand.

Extraction notes

• heading `cexit` read as `_cexit`

Stable link: /3.1/process.h/_cexit/ · short form /3.1/_cexit/