H06.09 Software Installation and Upgrade Guide

H06.09 Installation, Migration, and Fallback

Considerations

H06.09 Software Installation and Upgrade Guide—544316-002

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COBOL H06.08 and Later Fallback

Starting with the H06.08 RVU, the ECOBOL compiler provides new syntax to support

dynamic memory allocation. This new feature requires the H06.08 or later version of

the COBOL Run-Time Library; thus, applications that use the feature will not run on

RVUs prior to H06.08 unless the COBOL Run-Time Library (T0357AAC) is applied.

This SPR is applicable only to H06.06 and later RVUs. Applications using the new

feature cannot be recompiled on RVUs prior to H06.08 unless the H06.08 version of

the ECOBOL compiler (T0356AAK) is applied.

C H06.08 and Later Fallback

Beginning in the H06.08 RVU, the TNS/E C compiler (T8164ABH for c89, T0549AAE

for CCOMP), C Standard Headers (T8645H02), and the C run-time libraries

(T8432H02 for the C Run-Time Library, T1269H02 for CRE) provide a subset of new

features from the new ISO/IEC 9899:1999 standard.

Applications that use the new run-time library features will not run on RVUs prior to

H06.08 unless the new run-time library SPRs are applied. Applications that use the

new compiler features cannot be recompiled on RVUs prior to H06.08 unless the new

C compiler SPRs and standard header SPR are applied.

For descriptions of the new c99 standard features currently supported by the C

compiler and run-time library, see the C/C++ Programmer’s Guide.