dashu-macros

Utility macros to create mathematical number literals. See Docs.rs for the full documentation.

Features

• Support creating big integers with literals using ubig! and ibig!.
• Support creating big floats with literals using fbig! and dbig!.
• Support creating big rationals with literals using rbig!.
• Support creating big complex numbers with literals using cbig!.
• All macros can be used to create const numbers if they are small enough.

Quick example

One macro per number domain — all compile-time, with zero precision loss:

use dashu_macros::{ubig, ibig, fbig, dbig, rbig, cbig, static_ubig};
use dashu_int::UBig;

let a = ubig!(0x5a4653ca_67376856_5b41f775_); // integer, any base
let b = ibig!(-0x10ff);                       // signed integer
let c = fbig!(0x1.ffffp1023);                 // binary float (hex float syntax)
let d = dbig!(3.1415926535897932384626);      // decimal float
let e = rbig!(22 / 7);                        // rational
let f = cbig!(3 + 4i);                        // complex

// const-capable when the value fits in a DoubleWord
const C: UBig = ubig!(0xffff_ffff);

// explicit radix, and static_ variants for large const values
let g = ubig!(dead_beef base 16);
static BIG: &UBig = static_ubig!(1234567890123456789012345678901234567890);

// the `_` escape for literals the tokenizer rejects (hex floats)
let _h = fbig!(_0x1.0p0);

License

See the top-level readme.