.\" This file is part of the Public Domain C Library (PDCLib).
.\" Permission is granted to use, modify, and / or redistribute at will.
.\"
.Dd
.Dt ERRNO.H 3
.Os
.\"
.Sh NAME
.Nm errno.h
.Nd error results
.\"
.Sh SYNOPSIS
.In errno.h
.\"
.Sh DESCRIPTION
The header defines the value
.Dv errno
to be an lvalue of thread-local storage duration.
.\"
.Pp
From the ISO C standard, the following error code constants are defined:
.Bl -tag -compact
.It ERANGE
indicating a value is out of range
.It EDOM
indicating that a value is outside the domain of the current function
.It EILSEQ
indicating an invalid character sequence
.El
.\"
.Pp
From the ISO C++ 2011 standard, the following error code constants are defined:
.Bl -tag -compact
.It E2BIG
.It ECONNRESET
.It EISCONN
.It ENOENT
.It ENOTRECOVERABLE
.It EROFS
.It EACCES
.It EDEADLK
.It EISDIR
.It ENOEXEC
.It ENOTSOCK
.It ESPIPE
.It EADDRINUSE
.It EDESTADDRREQ
.It ELOOP
.It ENOLCK
.It ENOTSUP
.It ESRCH
.It EADDRNOTAVAIL
.It EMFILE
.It ENOLINK
.It ENOTTY
.It ETIME
.It EAFNOSUPPORT
.It EEXIST
.It EMLINK
.It ENOMEM
.It ENXIO
.It ETIMEDOUT
.It EAGAIN
.It EFAULT
.It EMSGSIZE
.It ENOMSG
.It EOPNOTSUPP
.It ETXTBSY
.It EALREADY
.It EFBIG
.It ENAMETOOLONG
.It ENOPROTOOPT
.It EOVERFLOW
.It EWOULDBLOCK
(which may have the same value as 
.Ev EAGAIN )
.It EBADF
.It EHOSTUNREACH
.It ENETDOWN
.It ENOSPC
.It EOWNERDEAD
.It EXDEV
.It EBADMSG
.It EIDRM
.It ENETRESET
.It ENOSR
.It EPERM
.It EBUSY
.It ENETUNREACH
.It ENOSTR
.It EPIPE
.It ECANCELED
.It EINPROGRESS
.It ENFILE
.It ENOSYS
.It EPROTO
.It ECHILD
.It EINTR
.It ENOBUFS
.It ENOTCONN
.It EPROTONOSUPPORT
.It ECONNABORTED
.It EINVAL
.It ENODATA
.It ENOTDIR
.It EPROTOTYPE
.El
.Sh SEE ALSO
.Xr errno 3
.Sh STANDARDS
Conforming to
.St -isoC-90 ,
.St -isoC-99 , 
ISO/IEC 14882:2011 "ISO C++ 11"