bdfp1m0y | Programming Concepts and Reference |
Note to ALCS Customers |
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You must enable TPFDF C language support before using the TPFDF C language functions. See TPFDF Installation and Customization for more information about enabling TPFDF C language support in an ALCS environment. |
The TPFDF C language functions are set up in groups. All the functions in any one group perform a similar service. For example, each function in the dfrst function group restores a subfile that you specify. The specific function in a group that you use depends on what parameters you want to specify. For example, when you are restoring a subfile:
This chapter contains an alphabetic listing of the TPFDF C language function groups that you can use in application programs. The description of each function group includes the following information:
Format: Provides the function prototype and a description of each parameter and variable.
Entry Requirements: Lists any special conditions that must be true when you use the function.
Normal Return: Lists what is returned when the function has completed processing successfully.
Error Return: Lists what is returned when the function cannot complete processing successfully.
Programming Considerations: Lists any additional considerations for using the function, including any restrictions or limitations.
Examples: Provides one or more examples that show you how to code the function.
Related Functions: Lists where to find information about related functions.
Include the Correct Header Files |
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Code the following statement in all your TPFDF C language application programs: #include <cdf.h> This statement causes all the necessary header files to be included in the C application program in the correct order. The following is a list of these header files:
For information about the header files needed for TPF C support or ALCS C support, see TPF Application Programming or the ALCS Application Programming Guide. |