错误码对应宏
EPERM 1 /＊ Operation not permitted＊/
ENOENT 2 /＊ No such file or directory＊/
ESRCH 3 /＊ No such process＊/
EINTR 4 /＊ Interrupted system call＊/
EIO 5 /＊ I/O error＊/
ENXIO 6 /＊ No such device or address＊/
E2BIG 7 /＊ Argument list too long＊/
ENOEXEC 8 /＊ Exec format error＊/
EBADF 9 /＊ Bad file number＊/
ECHILD 10 /＊ No child processes＊/
EAGAIN 11 /＊ Try again＊/
ENOMEM 12 /＊ Out of memory＊/
EACCES 13 /＊ Permission denied＊/
EFAULT 14 /＊ Bad address＊/
ENOTBLK 15 /＊ Block device required＊/
EBUSY 16 /＊ Device or resource busy＊/
EEXIST 17 /＊ File exists＊/
EXDEV 18 /＊ Cross-device link＊/
ENODEV 19 /＊ No such device＊/
ENOTDIR 20 /＊ Not a directory＊/
EISDIR 21 /＊ Is a directory＊/
EINVAL 22 /＊ Invalid argument＊/
ENFILE 23 /＊ File table overflow＊/
EMFILE 24 /＊ Too many open files＊/
ENOTTY 25 /＊ Not a typewriter＊/
ETXTBSY 26 /＊ Text file busy＊/
EFBIG 27 /＊ File too large＊/
ENOSPC 28 /＊ No space left on device＊/
ESPIPE 29 /＊ Illegal seek＊/
EROFS 30 /＊ Read-only file system＊/
EMLINK 31 /＊ Too many links＊/
EPIPE 32 /＊ Broken pipe＊/
EDOM 33 /＊ Math argument out of domainof func ＊/
ERANGE 34 /＊ Math result notrepresentable ＊/
EDEADLK 35 /＊ Resource deadlock wouldoccur ＊/
ENAMETOOLONG 36 /＊ File name too long ＊/
ENOLCK 37 /＊ No record locks available＊/
ENOSYS 38 /＊ Function not implemented＊/
ENOTEMPTY 39 /＊Directory not empty ＊/
ELOOP 40 /＊ Too many symbolic linksencountered ＊/
EWOULDBLOCK EAGAIN /＊Operation would block ＊/
ENOMSG 42 /＊ No message of desired type＊/
EIDRM 43 /＊ Identifier removed＊/
ECHRNG 44 /＊ Channel number out of range＊/
EL2NSYNC 45 /＊ Level2 not synchronized ＊/
EL3HLT 46 /＊ Level 3 halted＊/
EL3RST 47 /＊ Level 3 reset＊/
ELNRNG 48 /＊ Link number out of range＊/
EUNATCH 49 /＊ Protocol driver notattached ＊/
ENOCSI 50 /＊ No CSI structure available＊/
EL2HLT 51 /＊ Level 2 halted＊/
EBADE 52 /＊ Invalid exchange＊/
EBADR 53 /＊ Invalid request descriptor＊/
EXFULL 54 /＊ Exchange full＊/
ENOANO 55 /＊ No anode＊/
EBADRQC 56 /＊ Invalid request code＊/
EBADSLT 57 /＊ Invalid slot＊/
EDEADLOCK EDEADLK
EBFONT 59 /＊ Bad font file format＊/
ENOSTR 60 /＊ Device not a stream＊/
ENODATA 61 /＊ No data available＊/
ETIME 62 /＊ Timer expired＊/
ENOSR 63 /＊ Out of streams resources＊/
ENONET 64 /＊ Machine is not on thenetwork ＊/
ENOPKG 65 /＊ Package not installed＊/
EREMOTE 6
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