2.11BSD#431 - /usr/man/cat3f/perror.0

PERROR(3F)	    UNIX Programmer's Manual	       PERROR(3F)


NAME
     perror, gerror, ierrno - get system error messages

SYNOPSIS
     subroutine perror (string)
     character*(*) string

     subroutine gerror (string)
     character*(*) string

     character*(*) function gerror()

     function ierrno()

DESCRIPTION
     Perror will write a message to fortran logical unit 0
     appropriate to the last detected system error.  String will
     be written preceding the standard error message.

     Gerror returns the system error message in character vari-
     able string. Gerror may be called either as a subroutine or
     as a function.

     Ierrno will return the error number of the last detected
     system error.  This number is updated only when an error
     actually occurs.  Most routines and I/O statements that
     might generate such errors return an error code after the
     call; that value is a more reliable indicator of what caused
     the error condition.

FILES
     /usr/lib/libU77.a

SEE ALSO
     intro(2), perror(3)
     D. L. Wasley, Introduction to the f77 I/O Library

BUGS
     String in the call to perror can be no longer than 127 char-
     acters.

     The length of the string returned by gerror is determined by
     the calling program.

NOTES
     UNIX system error codes are described in intro(2).  The f77
     I/O error codes and their meanings are:

	  100  ``error in format''
	  101  ``illegal unit number''
	  102  ``formatted i/o not allowed''
	  103  ``unformatted i/o not allowed''


Printed 11/26/99	  June 7, 1985				1


PERROR(3F)	    UNIX Programmer's Manual	       PERROR(3F)


	  104  ``direct i/o not allowed''
	  105  ``sequential i/o not allowed''
	  106  ``can't backspace file''
	  107  ``off beginning of record''
	  108  ``can't stat file''
	  109  ``no * after repeat count''
	  110  ``off end of record''
	  111  ``truncation failed''
	  112  ``incomprehensible list input''
	  113  ``out of free space''
	  114  ``unit not connected''
	  115  ``invalid data for integer format term''
	  116  ``invalid data for logical format term''
	  117  ``'new' file exists''
	  118  ``can't find 'old' file''
	  119  ``opening too many files or unknown system error''
	  120  ``requires seek ability''
	  121  ``illegal argument''
	  122  ``negative repeat count''
	  123  ``illegal operation for unit''
	  124  ``invalid data for d, e, f, or g format term''


Printed 11/26/99	  June 7, 1985				2