Calling C functions from Objective-C (references and default parameters)

Question

Is it possible to include a C header file for a dylib into an Objective-C project when the functions for the dylib include references and default parameters. For example

extern "C" {
unit32_t GetThisReference(uint32_t & theRef);
unit32_t ThisFunctionHasDefaults(uint32_t aparm, uint32_t one = 1, uint32_t two = 2);
};

Thanks!

extern "C" and default parameters and references make your example look like C++, not C. — Carl Norum
– Carl Norum, Commented Mar 18, 2012 at 22:06

Matt Wilding · Accepted Answer · 2012-03-18 22:07:04Z

4

References and default parameters are features of C++, not C. You could try compiling the file as Objective C++ (by changing the extension to .mm).

answered Mar 18, 2012 at 22:07

Matt Wilding

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MrMage · Accepted Answer · 2012-03-18 22:05:48Z

1

Including C libraries is straightforward as Objective C is merely a superset of plain C. But as far as I know, C functions do not have default values. Are you sure that you don't mean a C++ library? In that case, you may want to call the library functions from an Objective-C++ file.

answered Mar 18, 2012 at 22:05

MrMage

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