c - 接口(interface) Go 与 C 库

Question

如何将 Go 程序与 C 库接口(interface)？

我一直在浏览 Go 的源代码，但还是没有弄明白。如果有人已经这样做了，你能分享一下吗？

更新:感谢@fserb，我发布了一些来自 Go 资源的文档:

Cgo enables the creation of Go packages that call C code.

Usage: cgo [compiler options] file.go

The compiler options are passed through uninterpreted when invoking gcc to compile the C parts of the package.

The input file.go is a syntactically valid Go source file that imports the pseudo-package "C" and then refers to types such as C.size_t, variables such as C.stdout, or functions such as C.putchar.

If the import of "C" is immediately preceded by a comment, that comment is used as a header when compiling the C parts of the package. For example:

// #include <stdio.h>
// #include <errno.h>
import "C"

Cgo transforms the input file into four output files: two Go source files, a C file for 6c (or 8c or 5c), and a C file for gcc.

The standard package makefile rules in Make.pkg automate the process of using cgo. See $GOROOT/misc/cgo/stdio and $GOROOT/misc/cgo/gmp for examples.

Cgo does not yet work with gccgo.

Answer 1

检查 cgo .此外，请查看 Go 源代码上的 misc/cgo/gmp 以获取有关如何在 Go 中包装 C 库的示例代码。