Writing a UDF

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In the C language, a UDF is written like any standard function. The UDF can require up to ten input parameters, and can return only a single C data value. A source code module can define one or more functions and can use typedefs defined in the InterBase ibase.h header file. You must then include ibase.h when you compile.

Topics

• Specifying Parameters
• Specifying a Return Value
• Character Data Types
• UDF Calling Conventions