User's Guide > Fundamentals > Creo Toolkit Style > Function Prototyping
Function Prototyping
 
Each Creo TOOLKIT function has an ANSI function prototype. (The C compilers on platforms supported by Creo TOOLKIT provide at least the option of function prototype checking.) All function prototypes for a particular Creo TOOLKIT object reside in a header file named for that object. For example, the prototype for function ProEdgeLengthEval() is located in the header file ProEdge.h.
Note:
 
PTC strongly recommends that you use prototyping. Make sure you include the appropriate header files in your Creo TOOLKIT application.
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