ILE C/C++ Programmer's Guide
Whenever modules from different sources are combined into a single program,
the compiler might have to process duplicate symbols.
Whenever you enter a CRTPGM command, the ILE compiler resolves import requests
by:
- Copying listed modules into what will become the program object and links
any service programs to the program object.
- Identifying the module containing the program entry procedure and locates
the first import in this module.
- Checking the modules in the order in which they are listed and matches the
first import with a module export.
- Returning to the first module and locates the next import.
- Resolving all imports in the first module.
- Continuing to the next module and resolving all imports in each subsequent
module until all imports have been resolved.
After all the imports have been resolved, the ILE compiler completes the
binding process and creates the program object. If any imports cannot
be resolved with an export, the compiler terminates the binding process
without creating a program object.
- Note:
- If you have specified in the binder language that a variable is to be
exported (using the EXPORT keyword), it is possible that the variable
name will be identical to a variable in another procedure within the bound
program object. You can use the *DUPPROC option on the CRTPGM
OPTION parameter to allow duplicate procedure names. See WebSphere Development Studio: ILE C/C++ Compiler
Reference for further information on how to handle this
situation.
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