ufo::Label Struct Reference

Represents a semantic class label as a single unsigned integer value. More...

#include <lib/core/include/ufo/core/label.hpp>

Public Types
using	value_type = std::uint32_t
	Underlying integer type.

Public Member Functions
constexpr	operator value_type () const noexcept
	Implicitly converts to the underlying integer type.

Public Attributes
value_type	label {}
	The raw class label identifier.

Friends
constexpr auto	operator<=> (Label lhs, Label rhs) noexcept=default
	Three-way comparison (total order on the underlying integer).
constexpr bool	operator== (Label lhs, Label rhs) noexcept=default
	Equality comparison.

Detailed Description

Represents a semantic class label as a single unsigned integer value.

Label is a lightweight, trivially-copyable value type with no overhead over a bare uint32_t. It is implicitly convertible to and from uint32_t, fully ordered via <=>, and supports std::ostream streaming and std::format.

Intended for use as a per-point or per-node attribute in a semantic segmentation pipeline, where it can be stored as a separate SoA channel alongside position or intensity data. The integer backing allows up to ~4 billion distinct categories (e.g., "car", "wall", "ground").

Label is the category component of Semantic; pair it with Confidence when you also need a per-label confidence score.

Definition at line 72 of file label.hpp.

Member Typedef Documentation

value_type

using ufo::Label::value_type = std::uint32_t

Underlying integer type.

Definition at line 76 of file label.hpp.

Member Function Documentation

operator value_type()

constexpr ufo::Label::operator value_type ( ) const

inlineconstexprnoexcept

Implicitly converts to the underlying integer type.

Returns

The label value as a uint32_t.

Allows Label to be used wherever a uint32_t is expected.

Definition at line 90 of file label.hpp.

Friends And Related Symbol Documentation

operator<=>

constexpr auto operator<=> ( Label  lhs, Label  rhs  )

friend

Three-way comparison (total order on the underlying integer).

Parameters

[in]	lhs	Left operand.
[in]	rhs	Right operand.

Returns

Comparison result.

operator==

constexpr bool operator== ( Label  lhs, Label  rhs  )

friend

Equality comparison.

Parameters

[in]	lhs	Left operand.
[in]	rhs	Right operand.

Returns

True if both label values are equal.

Member Data Documentation

label

value_type ufo::Label::label {}

The raw class label identifier.

Definition at line 81 of file label.hpp.

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The documentation for this struct was generated from the following file:

• lib/core/include/ufo/core/label.hpp