How to resolve the algorithm Literals/Integer step by step in the Go programming language

Published on 12 May 2024 09:40 PM
#Go

How to resolve the algorithm Literals/Integer step by step in the Go programming language

Table of Contents

Problem Statement

Some programming languages have ways of expressing integer literals in bases other than the normal base ten.

Show how integer literals can be expressed in as many bases as your language allows.

Note:   this should not involve the calling of any functions/methods, but should be interpreted by the compiler or interpreter as an integer written to a given base. Also show any other ways of expressing literals, e.g. for different types of integers.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Literals/Integer step by step in the Go programming language

The provided Go program demonstrates the versatility of numeric literals in Go, showcasing how integers can be represented in different bases and even as characters. Here's a detailed explanation:

  1. Hexadecimal Literal (0x2d7):

    • The 0x prefix indicates a hexadecimal literal.
    • 2d7 represents the hexadecimal number two hundred and seventy-nine (2 * 16^2 + 13 * 16 + 7).
    • The == operator checks if this value is equal to 727.
  2. Octal Literal (01327):

    • The 0 prefix indicates an octal literal.
    • 1327 represents the octal number one thousand three hundred and twenty-seven (1 * 8^3 + 3 * 8^2 + 2 * 8 + 7).
    • The == operator checks if this value is equal to 727.
  3. Binary Literal (0b10110_10111):

    • The 0b prefix indicates a binary literal.
    • 10110_10111 represents the binary number one zero one one zero one zero one one one (2^11 + 2^10 + 2^8 + 2^7 + 2^5 + 2^4 + 2^1 + 2^0).
    • The _ underscore is used as a visual separator to improve readability, but it is not required.
    • The == operator checks if this value is equal to 727.
  4. Character Literal ('˗'):

    • The single quotes ' enclose a character literal.
    • The character ˗ represents the Unicode code point U+2044, which is a minus sign.
    • In Go, character literals can be used interchangeably with their corresponding Unicode code point integers.
    • The == operator checks if the Unicode code point of ˗ (2044) is equal to 727.

The program prints true for all four comparisons, demonstrating that 727 can be represented in different numeric formats and even as a character. This versatility allows programmers to choose the most appropriate representation for their needs.

Source code in the go programming language

package main

import "fmt"

func main() {
	fmt.Println(727 == 0x2d7)         // prints true
	fmt.Println(727 == 01327)         // prints true
	fmt.Println(727 == 0b10110_10111) // prints true
	fmt.Println(727 == '˗')           // prints true
}


  

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