Engineering and Scientific Subroutine Library for AIX Version 3 Release 3: Guide and Reference

Migrating ESSL Version 3 Programs to Version 3 Release 1.1

This section describes all the aspects of migrating your ESSL Version 3 application programs to Version 3 Release 1.1.

Note:

For a list of the new features added in ESSL Version 3 Release 1.1, see Changes for ESSL Version 3 Release 1.1.

ESSL Subroutines

The calling sequences for the subroutines in ESSL Version 3 and ESSL Version 3 Release 1.1 are identical.

Distinct libraries are provided for AIX 4.2.1 and AIX 4.3.2

• For AIX 4.2.1, the ESSL Thread-Safe Library, the ESSL Thread-Safe POWER2 Library, and the ESSL SMP Library were built using the pthreads draft 7 supplied on AIX 4.2.1. (This is the same as ESSL 3.1)
• For AIX 4.3.2, the ESSL Thread-Safe Library, the ESSL Thread-Safe POWER2 Library, and the ESSL SMP Library were built using the pthreads library that conforms to the IEEE POSIX 1003.1-1996 specification supplied on AIX 4.3.

Threaded applications built using ESSL 3.1 will continue to run with ESSL 3.1.1.

If you are migrating to a 64-bit environment you may need to make changes to your call to ERRSET. See ERRSET--ESSL ERRSET Subroutine for ESSL.