Programming in D: The Ultimate Guide for Software Engineers/

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Format Specifiers: Format_Character

Format Specifiers: Format_Character

This lesson explains the format_character, which is a part of formatted output.

We'll cover the following...

format_character #

The following format characters are used in the wrtiefln() function:

  • b: an integer argument is displayed in the binary system.

  • o: an integer argument is displayed in the octal system.

  • x and X: an integer argument is displayed in the hexadecimal system; with lowercase letters when using x and with uppercase letters when using X.

  • d: an integer argument is displayed in the decimal system; a negative sign is also displayed if it is a signed type and the value is less than zero.

D
import std.stdio;
void main()
{
    int value = 12;
    
    writefln("Binary : %b", value);  
    writefln("Octal : %o", value);  
    writefln("Hexadecimal: %x", value);  
    writefln("Decimal : %d", value);
}

  • e: a floating point argument is ...