This is a Rust type that holds an integer or a float.

// from src/backing_types.rs
#[cfg(not(feature = "x64-backing-store"))]
pub type f_iof = f32;
#[cfg(not(feature = "x64-backing-store"))]
pub type i_iof = i32;
/// A generic container for an "integer or a float".
pub enum IntegerOrFloat {
    Integer(i_iof),
    Float(f_iof)
}

At first it was just a Rust implementation of the UFO datatype integer or float, which appears all over the UFO spec, but most importantly in the affine matrices used by glyph components.

Now (v0.1.4) it's generic. You can compile with the experimental feature x64-backing-store to get an IntegerOrFloat defined as such:

pub enum IntegerOrFloat {
    Integer(i64),
    Float(f64)
}

Rather than the default:

pub enum IntegerOrFloat {
    Integer(i32),
    Float(f32)
}

Enables serde with serde/std.

Enables float-cmp and num-traits crates, which provide ::ApproxEq and ::{cast::ToPrimitive, Zero, One, NumCast} respectively.

Enables Ryū (龍), for faster float→string conversions.

As of v0.2, an alias for numerical-traits. This is a breaking change from v0.1, serde no longer default!

As of v0.2, enables all.

    Copyright 2022 Fredrick R. Brennan <copypaste@kittens.ph>
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
      https://www.apache.org/licenses/LICENSE-2.0
    Unless required by applicable law or agreed to in writing, software
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