eerrrrnnoo -- Global Variable

External integer for return of error status
#iinncclluuddee <eerrrrnnoo.hh>
eexxtteerrnn iinntt eerrrrnnoo;

eerrrrnnoo is an external integer that COHERENT links into each of its programs.
COHERENT sets eerrrrnnoo  to the negative value of any  error status returned to
any function that performs COHERENT system calls.

Mathematical functions  use eerrrrnnoo to indicate  classifications of errors on
return.   eerrrrnnoo is  defined within  the header  file eerrrrnnoo.hh.   Because not
every  function uses  eerrrrnnoo, it  should be polled  only in  connection with
those functions that document its use and the meaning of the various status
values.  For  the names of  the error codes  (as defined in  eerrrrnnoo.hh, their
value, and the message returned by the function ppeerrrroorr, see eerrrrnnoo.hh.

_E_x_a_m_p_l_e
For an example  of using eerrrrnnoo in a mathematics  program, see the entry for
aaccooss.

_S_e_e _A_l_s_o
eerrrrnnoo.hh, mmaatthheemmaattiiccss lliibbrraarryy, ppeerrrroorr(), PPrrooggrraammmmiinngg CCOOHHEERREENNTT, ssiiggnnaall()
ANSI Standard, section 7.1.4
POSIX Standard, section 2.4
