Struct F32Grid 

pub struct F32Grid {
    pub bit_step: u32,
    pub subnormals: Option<SubnormalRange>,
}

A narrower float format’s grid, laid over the f32 bit pattern.

f32 carries every dtype this exists for exactly, so the grid can be walked there rather than through the storage type. A value representable in the dtype leaves the low f32 mantissa bits zero, so one dtype ulp is an increment at that position and the carry into the exponent falls out on its own. Working in f32 also keeps the grid available to backends with no narrow integer, and to builds without the fp8 feature.

Fields

bit_step: u32

One step up in the normal range, as an increment on the f32 bit pattern.

subnormals: Option<SubnormalRange>

The dtype’s subnormals, for the formats whose subnormals land in f32’s normal range.

Implementations

impl F32Grid

pub fn truncate_mask(&self) -> u32

Clears the mantissa bits the dtype does not carry, truncating a bit pattern onto the grid.

pub fn round_up_bias(&self) -> u32

Added to a bit pattern before truncate_mask to turn that truncation into a round up. The carry it can produce is only safe below the dtype’s maximum, which is why callers saturate there first.

Trait Implementations

impl Clone for F32Grid

fn clone(&self) -> F32Grid

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for F32Grid

impl Debug for F32Grid

fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), Error>

Formats the value using the given formatter.

impl PartialEq for F32Grid

fn eq(&self, other: &F32Grid) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for F32Grid