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cgo

Posted by 夏泽民 Nov 27, 2019

https://github.com/golang/go/wiki/cgo

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ast rewrite

Posted by 夏泽民 Nov 27, 2019

https://github.com/fatih/astrewrite http://goast.yuroyoro.net/ https://github.com/xdg-go/go-rewrap-errors At work, my team decided to switch our codebase from pkg/errors to Go 1.13’s native error wrapping. We used to wrap our errors like this:

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Pkg-Config cgo

Posted by 夏泽民 Nov 27, 2019

https://github.com/xlab/c-for-go

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Deadline

Posted by 夏泽民 Nov 27, 2019

package main

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CFLAGS

Posted by 夏泽民 Nov 27, 2019

https://github.com/chai2010/advanced-go-programming-book/blob/master/ch2-cgo/ch2-02-basic.md 要使用CGO特性，需要安装C/C++构建工具链，在macOS和Linux下是要安装GCC，在windows下是需要安装MinGW工具。同时需要保证环境变量CGO_ENABLED被设置为1，这表示CGO是被启用的状态。在本地构建时CGO_ENABLED默认是启用的，当交叉构建时CGO默认是禁止的。比如要交叉构建ARM环境运行的Go程序，需要手工设置好C/C++交叉构建的工具链，同时开启CGO_ENABLED环境变量。然后通过import “C”语句启用CGO特性。 2.2.1 import “C”语句 如果在Go代码中出现了import “C”语句则表示使用了CGO特性，紧跟在这行语句前面的注释是一种特殊语法，里面包含的是正常的C语言代码。当确保CGO启用的情况下，还可以在当前目录中包含C/C++对应的源文件。

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