What\'s the Most Compact Way to Represent Powers of 1000 Constants in Go?

Compactly Representing Powers of 10 Constants

The exercise in question requests a compact representation of constants denoting powers of 1000, namely KB, MB, GB, and so forth. While the initial thought might be to use iota, its limitations make it unsuitable for this specific task. Alternatively, there are several compact methods for defining these constants:

Floating-Point Literals:

Utilizing floating-point literals allows for a concise representation:

const ( KB, MB, GB, TB, PB, EB, ZB, YB = 1e3, 1e6, 1e9, 1e12, 1e15, 1e18, 1e21, 1e24 )

Integer Literals with KB Multiplication:

For untyped integer constants, multiplying the previous identifier by 1000 offers a compact solution:

const (KB,MB,GB,TB,PB,EB,ZB,YB = 1000,KB*KB,MB*KB,GB*KB,TB*GB,PB*KB,EB*KB,ZB*KB)

Integer Literals with Extra Multiplier:

Introducing a single-character multiplier const, 'x', can reduce the character count:

const (x,KB,MB,GB,TB,PB,EB,ZB,YB = 1000,x,x*x,MB*x,GB*x,TB*GB,PB*x,EB*x,ZB*x)

Rune Literal:

Specifying the 1000 constant as a rune literal with code point 1000, rendered as 'Ϩ', results in the most compact representation:

const (x,KB,MB,GB,TB,PB,EB,ZB,YB = 'Ϩ',x,x*x,MB*x,GB*x,TB*GB,PB*x,EB*x,ZB*x)

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