ios SIG错误

#define SIGHUP 1 /* hangup */

#define SIGINT 2 /* interrupt */

#define SIGQUIT 3 /* quit */

#define SIGILL 4 /* illegal instruction (not reset when caught) */

#define SIGTRAP 5 /* trace trap (not reset when caught) */

#define SIGABRT 6 /* abort() */

#if (defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE))

#define SIGPOLL 7 /* pollable event ([XSR] generated, not supported) */

#else /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

#define SIGIOT SIGABRT /* compatibility */

#define SIGEMT 7 /* EMT instruction */

#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */

#define SIGFPE 8 /* floating point exception */

#define SIGKILL 9 /* kill (cannot be caught or ignored) */

#define SIGBUS 10 /* bus error */

#define SIGSEGV 11 /* segmentation violation */

#define SIGSYS 12 /* bad argument to system call */

#define SIGPIPE 13 /* write on a pipe with no one to read it */

#define SIGALRM 14 /* alarm clock */

#define SIGTERM 15 /* software termination signal from kill */

#define SIGURG 16 /* urgent condition on IO channel */

#define SIGSTOP 17 /* sendable stop signal not from tty */

#define SIGTSTP 18 /* stop signal from tty */

#define SIGCONT 19 /* continue a stopped process */

#define SIGCHLD 20 /* to parent on child stop or exit */

#define SIGTTIN 21 /* to readers pgrp upon background tty read */

#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */

#if (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))

#define SIGIO 23 /* input/output possible signal */

#endif

#define SIGXCPU 24 /* exceeded CPU time limit */

#define SIGXFSZ 25 /* exceeded file size limit */

#define SIGVTALRM 26 /* virtual time alarm */

#define SIGPROF 27 /* profiling time alarm */

#if (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))

#define SIGWINCH 28 /* window size changes */

#define SIGINFO 29 /* information request */

#endif

#define SIGUSR1 30 /* user defined signal 1 */

#define SIGUSR2 31 /* user defined signal 2 */

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这里是链接：
https://itunes.apple.com/cn/app/shuang-yu-bo-fang-qi-kan-dian/id950279764?mt=8