roman-literals

roman-literals provides an easy way to write integer literals using Roman numerals.

Features

• Supports all integers from I to MMMCMXCIX (1 to 3999)
• Type inference with the [roman!] macro
• Zero cost!

Usage

• Type aliases like [iXXXII] are provided to replace primitive types like [i32].

• Using the [roman!] macro, the type of the literal is automatically inferred, with [iXXXII] being the default. The macro also supports negative numbers; see [roman!] for more details.

• Constants are also provided, such as III_uXXXII. These constants are all suffixed with their type. See the [consts] module for more details.

Examples

use roman_literals::*; // roman! macro and type aliases

let forty_two: uXXXII = roman!(XLII);
assert_eq!(forty_two, 42);

let negative_3999: iXVI = roman!(-MMMCMXCIX);
assert_eq!(negative_3999, -3999);

use roman_literals::consts::*; // to get the constants

let negative_300 = -CCC_iLXIV; // i64
assert_eq!(negative_300, -300);

Why?

Why not?