utils.hpp

#include "./concepts.hpp"
#include "../utility/macros.hpp"
#include <nda/nda.hpp>
#include <cstddef>
#include <cstdint>
#include <functional>
#include <ranges>
#include <span>
#include <string_view>
#include <tuple>
#include <type_traits>
#include <utility>

Detailed Description

Provides various utilities used with Meshes.

Definition in file utils.hpp.

Go to the source code of this file.

Classes
struct	triqs::mesh::closest_mesh_point_t< T >
	Lazy struct used in various function overloads as a placeholder for the closest mesh point to a given value. More...

Enumerations
enum	triqs::mesh::statistic_enum
	Enum to specify particle statistics. More...

Functions
template<typename... Ts>
auto	triqs::mesh::closest_mesh_pt (Ts &&...ts)
	Construct a triqs::mesh::closest_mesh_point_t object for a single value or a std::tuple of triqs::mesh::closest_mesh_point_t objects for multiple values.
template<Mesh M>
M	triqs::mesh::copy (M const &m)
	Get a copy of a mesh (for Python bindings).
template<Mesh M>
void	triqs::mesh::copy_from (M &m1, M const &m2)
	Copy one mesh into another (for Python bindings).
template<typename... Ts>
uint64_t	triqs::mesh::hash (Ts &&...ts)
	Generic hash function for multiple arguments.
template<nda::MemoryArray R>
std::size_t	triqs::mesh::hash_bytes (R const &r)
	Hash the raw bytes of a contiguous nda array's elements (forwards to the byte-span overload).
std::size_t	triqs::mesh::hash_bytes (std::span< std::byte const > bytes)
	Hash the raw bytes of a span via the standard library's std::hash<std::string_view>.
auto	triqs::mesh::operator* (statistic_enum s1, statistic_enum s2)
	Multiplication operator for two triqs::mesh::statistic_enum objects.
long	triqs::mesh::positive_modulo (long x, long y)
	Calculate the positive modulo of two integer numbers.
int	triqs::mesh::sign (statistic_enum s)
	Get the sign associated with the given particle statistics.
template<MeshWithValues M>
auto	triqs::mesh::values (M const &m)
	Get the values of all mesh points in a mesh.

Variables
template<Mesh M>
static constexpr bool	triqs::mesh::is_product = false
	Constexpr bool that is true if the given triqs::mesh::Mesh type is a product of meshes, i.e. a triqs::mesh::prod.
template<Mesh M>
static constexpr int	triqs::mesh::n_variables = 1
	Constexpr variable that holds the number of meshes in a triqs::mesh::Mesh type ( \( 1 \) for non-product meshes).