What is blending? Does golang support mixed compilation?

With the rapid development of Internet applications, developers need to use a programming language that is efficient, has good concurrency performance, and is easy to deploy to implement their projects. In this context, Go developed by Google has become a highly respected programming language. The Go language is excellent in many aspects, such as concurrency performance, memory management, etc., but many people still have some doubts about its hybrid programming capabilities. So, does Golang support mixing? This article will explore this in depth.

What is mixing?

Mixed Programming refers to the technology of using multiple programming languages ​​simultaneously in one program. This method can realize mutual calls and cooperation between various languages, so as to take advantage of the advantages of various languages ​​to achieve better development results. In actual development, hybrid technology is widely used and is often used to write complex applications, which can improve the flexibility and performance of the program.

Programming languages ​​that support mixing

Some programming languages ​​naturally support mixing. In these languages, programmers can easily mix and compile different program files into one program. These languages ​​include C, Java, C#, etc.

Does Golang support mixing?

In Golang language, although mixed programming of C and C languages ​​is natively supported, it does not mean that Go language supports mixed programming of all other languages. However, as long as there are corresponding calling mechanisms available for other languages, Go language can be used for mixed programming with these languages.

In Golang, hybrid programming with other languages ​​is achieved through cgo. cgo is a Go package that allows mixed compilation of Go code with C language code. When Golang lacks some specific libraries, cgo can be used to easily mix C libraries with Go code to implement more complex applications. Therefore, cgo is one of the best solutions for mixing other languages ​​with Golang.

Using cgo for mixed compilation

To use cgo, you only need to go to the main.go file in the Go project directory and add two key instructions: // #include and import "C"

The following is an example, we can mix the following C code into Go code for execution.

package main
//#include <stdio.h>
import "C"
func main() {
    C.puts(C.CString("Hello World"))
}

Description: Here is a sample program using cgo, which uses C code to output the string "Hello World" to the console.

Notes

When using cgo for mixed compilation, you need to follow the following points:

1. All C functions must be placed in a file named // #cgo CFLAGS In the comments, for example:

// #cgo CFLAGS: -std=c11

2. All C libraries need to be linked to the main.go file, for example:

// #cgo LDFLAGS: -lssl -lcrypto

3. Go and C The respective features and styles of languages ​​need to adapt to each other, such as data type conversion issues, memory management, etc. To prevent errors that are difficult to debug, it is recommended that developers be proficient in both languages.

Summary

As can be seen from this article, Golang is a programming language that supports mixing, but it is not supported by all programming languages. Mixing can be a powerful help in certain situations, especially when it comes to libraries written in other languages ​​or the need to call interfaces in other languages. In Golang, cgo is one of the best tools for hybrid programming.

When using cgo for mixed programming, you need to be familiar with its usage and follow the corresponding specifications to successfully complete the mixed programming task. Although there is some complexity and difficulty in learning, the advantages of hybrid technology are unparalleled, so we should make appropriate use of this technology to achieve better development results.

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