Golang : Read binary file into memory
Reading a binary file content into memory for further manipulation is easy with Go. In this tutorial, we will show how to read a binary file into buffer(memory). Go has a standard library package (http://golang.org/pkg/bufio/) to handle this kind of requirement.
The code below will just show you how to read the file content into memory. What you want to do next with the file content is up to you.
readbinaryfile.go
package main
import (
"os"
"bufio"
)
func main() {
file, err := os.Open("binary.dat")
if err != nil {
fmt.Println(err)
return
}
defer file.Close()
info, err := file.Stat()
if err != nil {
return nil, err
}
// calculate the bytes size
var size int64 = info.Size()
bytes := make([]byte, size)
// read into buffer
buffer := bufio.NewReader(file)
_,err = buffer.Read(bytes)
}
Reference :
See also : Golang : Read file with ioutil
By Adam Ng
IF you gain some knowledge or the information here solved your programming problem. Please consider donating to the less fortunate or some charities that you like. Apart from donation, planting trees, volunteering or reducing your carbon footprint will be great too.
Advertisement
Tutorials
+4.3k Golang : How to deal with configuration data?
+7.8k Golang : Capture text return from exec function example
+17.4k Golang : Check whether a network interface is up on your machine
+29.7k Golang : Get local IP and MAC address
+12.6k Golang : How to determine if a year is leap year?
+5.6k Golang : Totalize or add-up an array or slice example
+10.8k Golang : Perform sanity checks on filename example
+13.1k Golang : Recombine chunked files example
+13.5k Golang : Normalize unicode strings for comparison purpose
+32.5k Golang : Call a function after some delay(time.Sleep and Tick)
+4.5k Golang : If else example and common mistake
+29.5k Golang : bufio.NewReader.ReadLine to read file line by line