H-Series Application Migration Guide (H06.07+, J06.03+)

Native C and C++ Migration Tasks

H-Series Application Migration Guide—429855-008

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Toolsh++ TLHMAP File Names Changed

On H-series systems, the names of certain files listed in the TLHMAP file have

changed. The changed files are:

To avoid compilation errors, make sure you specify the new H-series file names if you

are using your own private map file.

Migrating to the C++ Standard Library VERSION2

Migrating from C++ VERSON1 to C++ VERSION2 should require few or no source

code changes. In most cases, simply specify the VERSION2 directive (or the

-Wversion2 flag) when you compile the program. If you are linking the program as a

separate step (rather than allowing the C++ driver to perform the link), you must also

specify the ZCPPCDLL and ZCPP2DLL DLLs on the eld command.

If you are also using Tools.h++ version 6, then you must also migrate to Tools.h++

version 7. Version 7 and version 6.1 of Tools.h++ are significantly different. For

example, the collection class templates were redesigned in version 7 to make the

templates compatible with the Standard C++ Library VERSION2. There are other

significant differences as well. Migrating from Tools.h++ version 6 to Tools.h++ version

7 migration requires extensive source code changes. See the Tools.h++ 7.0 User’s

Guide for details.

Migrating to the C++ Standard Library VERSION3

Regardless of whether you are currently using C++ VERSION1 or VERSION2,

migrating to VERSION3 is recommended. (See the C/C++ Programmer’s Guide for

details on the new features of VERSION3.) However, it is a somewhat more difficult

migration, entailing two steps:

•

Migrate the C++ library portion of your program to VERSION3 from VERSION1 or

VERSION2.

•

Change your program so that is does not use Tools.h++.

Migrating from VERSION1 to VERSION3 is relatively simple since VERSION1 is a

subset of VERSION3. The two versions are source-code compatible. The only

differences are in the names of header files. See the C/C++ Programmer’s Guide for

details.

Migrating from VERSION2 to VERSION3 requires more effort, due mainly to changed

definitions of certain class names. You can use the MIGRATION_CHECK pragma as

G-Series File Name H-Series File Name

generich rwgenerh

locale3h rwlocalh

newh rwnewh

regexph rwregexh