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Calling C from Go Using the "Foreign Function Interface"
The FAQ for the Go programming language mentions the "foreign function interface" as a way to call out to C functions from Go code. However, this interface is not documented in detail anywhere else in the official documentation.
To address this gap, let's delve into a practical example from the Go repository: https://github.com/golang/go/blob/master/src/syscall/zerrors.go. This file demonstrates how to wrap a C library in Go using the foreign function interface.
In this example, the following steps are taken:
This example illustrates a real-world application of the foreign function interface and provides valuable insights into the process of interfacing with C functions from Go code.
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