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1.1 ! root 1: ! 2: ! 3: _exit() COHERENT System Call _exit() ! 4: ! 5: ! 6: ! 7: ! 8: Terminate a program ! 9: ! 10: vvooiidd _eexxiitt(_s_t_a_t_u_s) iinntt _s_t_a_t_u_s; ! 11: ! 12: _exit terminates a program directly. It returns _s_t_a_t_u_s to the ! 13: calling program, and exits. Unlike the library function exit, ! 14: _exit does not perform extra termination cleanup, such as ! 15: flushing buffered files and closing open files. ! 16: ! 17: _exit should be used only in situations where you do _n_o_t want ! 18: buffers flushed or files closed. For example, you may wish to ! 19: call _exit if your program detects an irreparable error condition ! 20: and you want to ``bail out'' to keep your data files from being ! 21: corrupted. ! 22: ! 23: _exit should also be used with programs that do not use STDIO. ! 24: Unlike exit, _exit does not use STDIO. This will help you create ! 25: programs that are extremely small when compiled. ! 26: ! 27: ***** See Also ***** ! 28: ! 29: close(), COHERENT system calls, wait() ! 30: ! 31: ***** Notes ***** ! 32: ! 33: If a program leaves main() by an error condition, contents of ! 34: register AX becomes the exit code. Usually, these register con- ! 35: tents are random. If you want to test a program's return code, ! 36: you must to exit or return from main(). ! 37: ! 38: ! 39: ! 40: ! 41: ! 42: ! 43: ! 44: ! 45: ! 46: ! 47: ! 48: ! 49: ! 50: ! 51: ! 52: ! 53: ! 54: ! 55: ! 56: ! 57: ! 58: ! 59: ! 60: ! 61: ! 62: ! 63: ! 64: COHERENT Lexicon Page 1 ! 65: ! 66:
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