The Wolfram Language provides a convenient way to call functions in external C and other programs. With a .tm template specifying Wolfram Language functions corresponding to each C function, you build a WSTP-installable binary using mprep or mcc . You can exchange not only C-like data types such as integers, reals, arrays, and strings, but also arbitrary Wolfram Language expressions.

Install — load a WSTP installable executable to call from your Wolfram System session

Uninstall — close down a WSTP executable, removing its Wolfram Language functions

LinkPatterns — find functions available in a running WSTP program

. , tm — template file for connecting C and Wolfram Language functions

C Language Functions »

WSMain() — special version of main() for WSTP-installable C programs

WSEvaluate() , WSEvaluateString() — call back from C into the Wolfram Language

WSPutFunction() , WSGetFunction() , ... — exchange arbitrary structures

Related Tech Notes

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• Installing Existing WSTP-Compatible Programs
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• Setting Up External Functions to Be Called from the Wolfram Language
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• Two‐Way Communication with External Programs
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• Portability of WSTP Programs
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• WSTP C API Developer Guide (Mac OS X)
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• WSTP C API Developer Guide (Unix and Linux)
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• WSTP C API Developer Guide (Windows)

Related Guides

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• Java Connectivity
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• .NET Interface
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• WSTP API
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• Alphabetical Listing of WSTP C Functions