---
title: "ClikaRT::dtype::FloatInfo"
sidebar_label: "FloatInfo"
description: "Numeric properties of a floating-point DataType."
---

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<span class="api-kind api-kind--struct">struct</span>

**Header:** `ClikaRT/compute/finfo.h`

Numeric properties of a floating-point [`DataType`](../../index.md#DataType).

## Data members

### bits {#bits}

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`int` **`bits`**

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total stored bits (Float6\_E2M3 -\> 6, Float4\_E2M1 -\> 4).

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Declared in `ClikaRT/compute/finfo.h`, line 20

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### exponent\_bits {#exponent_bits}

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`int` **`exponent_bits`**

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exponent field width, bits

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Declared in `ClikaRT/compute/finfo.h`, line 21

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### mantissa\_bits {#mantissa_bits}

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`int` **`mantissa_bits`**

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mantissa (fraction) field width, bits

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Declared in `ClikaRT/compute/finfo.h`, line 22

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### bias {#bias}

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`int` **`bias`**

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exponent bias.

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Declared in `ClikaRT/compute/finfo.h`, line 23

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### is\_signed {#is_signed}

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`bool` **`is_signed`**

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has a sign bit (false for E8M0).

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Declared in `ClikaRT/compute/finfo.h`, line 24

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### has\_infinity {#has_infinity}

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`bool` **`has_infinity`**

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representation has infinities

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Declared in `ClikaRT/compute/finfo.h`, line 25

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### has\_nan {#has_nan}

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`bool` **`has_nan`**

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representation has NaN

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Declared in `ClikaRT/compute/finfo.h`, line 26

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### has\_denorm {#has_denorm}

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`bool` **`has_denorm`**

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representation has subnormals

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Declared in `ClikaRT/compute/finfo.h`, line 27

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### is\_lookup {#is_lookup}

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`bool` **`is_lookup`**

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true for an NF4-style lookup-quantized format.

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Declared in `ClikaRT/compute/finfo.h`, line 28

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### eps {#eps}

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`float` **`eps`**

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1 ULP at 1.0.

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Declared in `ClikaRT/compute/finfo.h`, line 29

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### smallest\_normal {#smallest_normal}

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`float` **`smallest_normal`**

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smallest positive NORMAL value

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Declared in `ClikaRT/compute/finfo.h`, line 30

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### denorm\_min {#denorm_min}

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`float` **`denorm_min`**

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smallest positive subnormal (== smallest\_normal when has\_denorm is false)

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Declared in `ClikaRT/compute/finfo.h`, line 31

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### min\_value {#min_value}

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`float` **`min_value`**

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most-negative finite value.

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Declared in `ClikaRT/compute/finfo.h`, line 32

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### max\_value {#max_value}

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`float` **`max_value`**

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most-positive finite value.

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Declared in `ClikaRT/compute/finfo.h`, line 33

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### dtype {#dtype}

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[`DataType`](../../index.md#DataType) **`dtype`**

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the dtype these facts describe

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Declared in `ClikaRT/compute/finfo.h`, line 34

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