Equivalent of sizeof(aType) in Go

Question

C++ and several other languages have a function called sizeof(int) (or whatever type you need) that returns the number of bytes consumed by a particular data type, in the current system.

Is there an equivalent function in Go? What is it?

Answer 1

If you simply want to find out the size of an int or uint, use strconv.IntSize.

Package strconv

Constants

const IntSize = intSize

IntSize is the size in bits of an int or uint value.

For example,

package main

import (
    "fmt"
    "runtime"
    "strconv"
)

func main() {
    fmt.Println(runtime.Compiler, runtime.GOARCH, runtime.GOOS)
    fmt.Println(strconv.IntSize)
}

Output:

gc amd64 linux
64