Programming in D: The Ultimate Guide for Software Engineers/

...

/

Format Specifiers: Width, Separator, Precision and Flags

Format Specifiers: Width, Separator, Precision and Flags

This lesson explains four more parts of the format specifier: width, separator, precision and flags.

We'll cover the following...

Width #

This part determines the width in characters that the argument is displayed in. If the width is specified as the character *, then the actual width value is read from the next argument (that argument must be an int). If width is a negative value, then the - flag is assumed.

D
import std.stdio;
void main() {
    int value = 100;
    writefln("In a field of 10 characters:%10s", value); 
    writefln("In a field of 5 characters :%5s", value);
    
}

Separator #

The comma character ...