errno.h

/***
*errno.h - system wide error numbers (set by system calls)
*
*       Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
*       This file defines the system-wide error numbers (set by
*       system calls).  Conforms to the XENIX standard.  Extended
*       for compatibility with Uniforum standard.
*       [System V]
*
*       [Public]
*
****/

#if     _MSC_VER > 1000
#pragma once
#endif

#ifndef _INC_ERRNO
#define _INC_ERRNO

#include <crtdefs.h>

#ifdef  __cplusplus
extern "C" {
#endif

/* declare reference to errno */

#ifndef _CRT_ERRNO_DEFINED
#define _CRT_ERRNO_DEFINED
_CRTIMP extern int * __cdecl _errno(void);
#define errno   (*_errno())

errno_t __cdecl _set_errno(_In_ int _Value);
errno_t __cdecl _get_errno(_Out_ int * _Value);
#endif

/* Error Codes */

#define EPERM           1
#define ENOENT          2
#define ESRCH           3
#define EINTR           4
#define EIO             5
#define ENXIO           6
#define E2BIG           7
#define ENOEXEC         8
#define EBADF           9
#define ECHILD          10
#define EAGAIN          11
#define ENOMEM          12
#define EACCES          13
#define EFAULT          14
#define EBUSY           16
#define EEXIST          17
#define EXDEV           18
#define ENODEV          19
#define ENOTDIR         20
#define EISDIR          21
#define ENFILE          23
#define EMFILE          24
#define ENOTTY          25
#define EFBIG           27
#define ENOSPC          28
#define ESPIPE          29
#define EROFS           30
#define EMLINK          31
#define EPIPE           32
#define EDOM            33
#define EDEADLK         36
#define ENAMETOOLONG    38
#define ENOLCK          39
#define ENOSYS          40
#define ENOTEMPTY       41

/* Error codes used in the Secure CRT functions */

#ifndef RC_INVOKED
#if !defined(_SECURECRT_ERRCODE_VALUES_DEFINED)
#define _SECURECRT_ERRCODE_VALUES_DEFINED
#define EINVAL          22
#define ERANGE          34
#define EILSEQ          42
#define STRUNCATE       80
#endif
#endif


/*
 * Support EDEADLOCK for compatibiity with older MS-C versions.
 */
#define EDEADLOCK       EDEADLK

#ifdef  __cplusplus
}
#endif

#endif  /* _INC_ERRNO */