ref: f9eff8349233561e3a8be267dd92876d55983593
dir: /libc/src/atexit.c/
/* See LICENSE file for copyright and license details. */ #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; }