| Цитата(shedon @ 20.8.2004, ) | | Почему наоборот ? Хотя это уже кому как больше нравится, но, вроде, принято именно так делать... |
Я привык, что не ноль - это ошибка, вот как здесь например (MSDN):
| Цитата | atexit
Processes the specified function at exit.
int atexit( void ( __cdecl *func )( void ) );
Routine Required Header Compatibility
atexit <stdlib.h> ANSI, Win 95, Win NT
For additional compatibility information, see Compatibility in the Introduction.
Libraries
LIBC.LIB Single thread static library, retail version
LIBCMT.LIB Multithread static library, retail version
MSVCRT.LIB Import library for MSVCRT.DLL, retail version
To generate an ANSI-compliant application, use the ANSI-standard atexit function (rather than the similar _onexit function).
Return Value
atexit returns 0 if successful, or a nonzero value if an error occurs.
Parameter
func
Function to be called
Remarks
The atexit function is passed the address of a function (func) to be called when the program terminates normally. Successive calls to atexit create a register of functions that are executed in LIFO (last-in-first-out) order. The functions passed to atexit cannot take parameters. atexit and _onexit use the heap to hold the register of functions. Thus, the number of functions that can be registered is limited only by heap memory.
Example
/* ATEXIT.C: This program pushes four functions onto
* the stack of functions to be executed when atexit
* is called. When the program exits, these programs
* are executed on a "last in, first out" basis.
*/
#include <stdlib.h>
#include <stdio.h>
void fn1( void ), fn2( void ), fn3( void ), fn4( void );
void main( void )
{
atexit( fn1 );
atexit( fn2 );
atexit( fn3 );
atexit( fn4 );
printf( "This is executed first.\n" );
}
void fn1()
{
printf( "next.\n" );
}
void fn2()
{
printf( "executed " );
}
void fn3()
{
printf( "is " );
}
void fn4()
{
printf( "This " );
}
Output
This is executed first.
This is executed next.
Process and Environment Control Routines
See Also abort, exit, _onexit |
Да и вообще если создать в том же MS VS компиляторе новый проект, то он вывалит парочку файлов, а в main написано следующее:
| Код | #include "stdafx.h"
int main(int argc, char* argv[])
{
return 0;
} |
То есть как бы: нет ошибок - return 0. |
