The Go Programming Langauge

8/3/2019 The Go Programming Langauge

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Googles

Go ProgrammingLanguage

-:Seminar On:-

----------------------------------Saurabh S. Gilalkar

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Go is the open source system programminglanguage developed by Google.

It is experimental.

It is simple and fast.

It can compile large programs inmilliseconds.

Introduction

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The initial design was started inSep 2007 by,

Robert Griesemer,

Rob Pike,Ken Thompson. Officially announced in Nov 2009.

In May 2010, publicly stated that Gowas being used "for real stuff" at Google.

History

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Need of developing

Go.. No major systems language has emergedin over a decade, but over that time thecomputing landscape has changed

tremendously.

The emergence of multi-core computers

has generated worry and confusion.

The developers are not happy with the

construction speed. They have to waitwhile the code is com ilin . 44


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Features of Go

It is based on the C programming language.

It is simple and easy.

It provides high speed compilation

It supports multi-core computers.

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Features of Go

Runs on Linux and MAC OS-X Platforms.

New versions also runs on Windows.

It is type safe and memory safe.

It uses two compliers i.e. Gccgo which uses GCC atthe back end and 6g for 64-bit architecture and 8gfor 32-bit.

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Click to edit Master text stylesSecond level Third level Fourth level Fifth level

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What is Difference with

other languageSimplicity in code writingFew keywords, parsable without symbol table.

Free from use of semicolon(;).They are optional.

Go needs fewer parentheses for control

strusture like if, for and switch.It supports pointer concept,But in limited manner.

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Data Types

int8,int16,int32,int64.

uint8,uint16,uint32,uint64.

Float32,float64.

complex64 ,complex128.

String.

Other Types:-ArrayType,SliceType,StructType,PointerType,FunctionType,InterfaceType,MapType,ChannelType.

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Some Syntatical Difference

if Statementif x > 0

{ return y }

for Statment

for i := 0; i < 10; i++

{ //body of loop }

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Some Syntatical Difference

Direct variable decleration and Itializationi, j := 0, 10 //In C, int i=0,j=10;

Function Decleration:-func min(x int, y int) int

{ if x < y

{ return x }return y

}

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/*In Cint min(int x,inty){ if(x


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Example Code

//To print Hello on Screen

package main //name of packageimport "fmt //Package implementing formatted I/O.func main()

{fmt.Printf("Hello,\n")

}

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Compilation

Using gccgo:- $ gccgo prog.go

$ a.out

Hello$

Using 6g:-

$ 6g prog.go # compile; object goes into prog.6$ 6l prog.6 # link; output goes into 6.out$ 6.outHello

$ 1313


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ConclusionA new System programming language over a long period.Very comfortable and productive language.

Full Open Source inmplementation.

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ReferenceOfficial Website:- http://golang.org


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Thank You..!

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Documents

The Go Programming Langauge