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Version 2.0-4

EMS Version 2.0-4 is released.

This version of EMS is implemented entirely in C. A Fortran interface (also implemented in C) is provided. EMS Version 2.0 or higher is required for use with MERS Version 1.7 or higher.

The following functional changes have occurred since EMS Version 1.7-1:

1.
Now that base-level output of error messages from EMS occurs in C, some undesirable conflicts may occur if output by this method occurs interspersed with Fortran output. The base level, EMS__BASE is now available in the ems_par.h header file and the EMS_PAR Fortran include file.
2.
New subroutines EMS_TUNE (and emsTune) and EMS_EXPND (and emsExpnd) are included. EMS_EXPND (emsExpnd) is similar in function to EMS_MLOAD (emsMload), which is now deprecated because it has a redundant parameter, PARAM, and the C interface provides no limit on the output string size.
3.
The EMS_FMTx and emsFmtx routines are withdrawn on the assumption that they have not been called directly and to avoid confusion between Fortran and C format syntax.
4.
emsFioer is withdrawn as it is Fortran-specific. The Fortran-callable EMS_FIOER is still provided.
5.
The calling sequence for the C functions is identical to the existing C interface to Fortran EMS, with the following exceptions:
6.
The temporary drop-through functions introduced in Version 1.6 to enable compiled C code which uses the old form of EMS function name (ems_annul_c etc.) to continue working have been withdrawn.

Any such code which has not been re-compiled using a Version 1.6 or later ems.h header file must be re-compiled now.

7.
The EMS library has been split into two - one containing the C interface and the other containing the Fortran interface. This makes it possible to link C programs with EMS without requiring the Starlink CNF library to be present (use `ems_link Conly`).

Any programs linked with the shared libraries must be re-linked.

8.
A bug which prevented tokens from being renewed in some cases has been fixed.
SSN/4 has been revised to describe the new system.

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EMS Error Message Service
Starlink System Note 4
P C T Rees
A J Chipperfield
28 September 2001
E-mail:ussc@star.rl.ac.uk

Copyright © 2001 Council for the Central Laboratory of the Research Councils