CRE Programmer's Guide

CRE Services

Common Run-Time Environment (CRE) Programmer’s Guide—528146-004

2-54

FORTRAN Routines

If an error occurs in a TNS CRE or run-time library function called from a FORTRAN

routine, the TNS CRE returns control to the FORTRAN run-time library. If the error

occurred when your program executed an I/O statement and you specified either the

IOSTAT or ERR parameters on the I/O statement, the FORTRAN run-time library

returns control to your FORTRAN program; otherwise, the run-time library terminates

the program.

See the

FORTRAN Reference Manual for further details on FORTRAN error

processing.

TAL Routines

If an error occurs in a CRE function called from a TAL routine, the CRE returns control

to the TAL routine without taking any specific action. Because TAL does not have a

run-time library, your TAL routine must handle all errors explicitly.

pTAL Routines

If an error occurs in a CRE function called from a pTAL routine, the CRE returns

control to the pTAL routine without taking any specific action. Because pTAL does not

have a run-time library, your pTAL routine must handle all errors explicitly.

Reporting CRE Errors in the OSS Environment

If the CRE detects that the run-time environment is corrupted, it reports an error and

terminates the process. The flow chart in Figure 2-16

shows how the CRE determines

the file to which it writes error messages. Note that the write to the home terminal

might fail. Whether the write to the home terminal succeeds or fails, however, the CRE

calls PROCESS_STOP_.