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_cexit, _c_exit

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Performs cleanup operations and returns without terminating the process.

Syntax

void _cexit( void );
void _c_exit( void );

Remarks

The _cexit function calls, in last-in, first-out (LIFO) order, the functions registered by atexit and _onexit. Then _cexit flushes all I/O buffers and closes all open streams before returning. _c_exit is the same as _exit but returns to the calling process without processing atexit or _onexit or flushing stream buffers. The behavior of exit, _exit, _cexit, and _c_exit is shown in the following table.

Function Behavior
exit Performs complete C library termination procedures, terminates process, and exits with supplied status code.
_exit Performs quick C library termination procedures, terminates process, and exits with supplied status code.
_cexit Performs complete C library termination procedures and returns to caller, but doesn't terminate process.
_c_exit Performs quick C library termination procedures and returns to caller, but doesn't terminate process.

When you call the _cexit or _c_exit functions, the destructors for any temporary or automatic objects that exist at the time of the call aren't called. An automatic object is an object that is defined in a function where the object isn't declared to be static. A temporary object is an object created by the compiler. To destroy an automatic object before calling _cexit or _c_exit, explicitly call the destructor for the object, as follows:

myObject.myClass::~myClass( );

By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.

Requirements

Routine Required header
_cexit <process.h>
_c_exit <process.h>

For more compatibility information, see Compatibility.

See also

Process and environment control
abort
atexit
_exec, _wexec functions
exit, _Exit, _exit
_onexit, _onexit_m
_spawn, _wspawn functions
system, _wsystem