TypeList.h File Reference

A TypeList provides a compile time sequence of heterogeneous types which can be accessed, transformed and executed over in various ways. It incorporates a subset of functionality similar to boost::mpl::vector however provides most of its content through using declarations rather than additional typed classes. More...

#include "version.h"
#include <tuple>
#include <type_traits>

Go to the source code of this file.

Classes
struct	TypeList< Ts >
	A list of types (not necessarily unique) More...
struct	TupleList< Ts >
	A trivial wrapper around a std::tuple but with compatible TypeList methods. Importantly can be instatiated from a TypeList and implements a similar ::foreach interface. More...
struct	TupleList<>
	Specilization of an empty TupleList. Required due to constructor selection. More...

Namespaces
	openvdb
	openvdb::v12_0

Macros
#define	OPENVDB_TYPELIST_FORCE_INLINE   OPENVDB_FORCE_INLINE

Functions
template<size_t Start, size_t End, typename OpT >
OPENVDB_FORCE_INLINE auto	foreachIndex (OpT op)
template<size_t Start, size_t End, typename OpT , typename RetT >
OPENVDB_FORCE_INLINE RetT	evalFirstIndex (OpT op, const RetT def=RetT())

Detailed Description

A TypeList provides a compile time sequence of heterogeneous types which can be accessed, transformed and executed over in various ways. It incorporates a subset of functionality similar to boost::mpl::vector however provides most of its content through using declarations rather than additional typed classes.

Macro Definition Documentation

#define OPENVDB_TYPELIST_FORCE_INLINE   OPENVDB_FORCE_INLINE

We should usually not be decorating public API functions with attributes such as always_inline. However many compilers are notoriously bad at inlining recursive template loops with default inline settings. The TypeList and TupleList metaprogram constructs heavily use this C++ feature and the performance difference can be substantial, even for very small lists. You can disable this behaviour by setting the define: OPENVDB_TYPELIST_NO_FORCE_INLINE This will disable the force inling on public API methods in this file.