shithub: scc

ref: 45a3ec40329b2948edc3a4e94f1850ccd02f4f29
dir: /lib/c/src/atexit.c/

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#include <stdlib.h>
#include <errno.h>
#undef atexit

extern void (*_exitf[_ATEXIT_MAX])(void);
extern unsigned _exitn;

int
atexit(void (*fun)(void))
{
	if (_exitn == _ATEXIT_MAX) {
		errno = ENOMEN;
		return -1;
	}
	_exitf[_exitn++] = fun;
	return 0;
}