Who Knew You Could Do That with RPG IV? Modern RPG for the Modern Programmer

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Application programming interfaces

The application programming interfaces (APIs) on IBM i provide access to standard C library functions, standard Portable Operating System Interface (POSIX) functions, IBM i system interfaces, and even IBM i machine instructions (MI).

The following API topics are described in this chapter:

•Finding APIs

•C functions

•POSIX interfaces

•IBM i system interfaces

•Creating a reusable API

•Things to remember

5.1 Finding APIs

Because hundreds of APIs are available on IBM i, the first problem is finding the ones that ...

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