PERROR(3F)              COMMAND REFERENCE              PERROR(3F)



NAME
     perror, gerror, ierrno - get system error messages

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

     subroutine gerror (string)
     character*(*) string

     character*(*) function gerror ()

     integer function ierrno ()

DESCRIPTION
     Perror writes a message to FORTRAN logical unit 0 (stderr)
     appropriate to the last detected system error.  The user
     specified string will be written preceding the standard
     error message.

     Gerror returns the system error message in character
     variable 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
                    f77 UTek system interface library.

DIAGNOSTICS
     UTek 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
          104 direct I/O not allowed
          105 sequential I/O not allowed
          106 cannot backspace file
          107 off beginning of record
          108 cannot stat file
          109 no * after repeat count
          110 off end of record
          111 truncation failed
          112 incomprehensible list input



Printed 3/13/89                                                 1

PERROR(3F)              COMMAND REFERENCE              PERROR(3F)



          113 out of free space
          114 unit not connected
          115 read unexpected character
          116 blank logical input field
          117 new file exists
          118 cannot find old file
          119 unknown system error
          120 requires seek ability
          121 illegal argument
          122 negative repeat count
          123 illegal operation for unit

CAVEATS
     String in the call to perror can be no longer than 127
     characters.

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

SEE ALSO
     intro(2) and perror(3c).


































Printed 3/13/89                                                 2

%%index%%
na:312,102;
sy:414,1659;
de:2073,1096;
fi:3169,191;
di:3360,746;4490,402;
ca:4892,381;
se:5273,168;
%%index%%000000000133