How to call C from Swift?

[toph42 (Topher Hickman)]

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How to pass double pointer to char to c function using swift

Hi... i am new to swift . I am trying to call c function using swift . c function declaration extern int pointerfunc(int p0, char** p1); I am using .dylib for importing function in swift so , i have created typealias for c function typealias pointerfunc = @convention(c)(CInt,CChar) -> CInt Swift code that i am using for calling c function and creating pointer is //Created variable var error = "Error received" // withUnsafePointer(to: &error) { errorvalue in withUnsafePointer(to: errorv…