StringRef

#include <poplar/StringRef.hpp>

namespace poplar

Poplar classes and functions.

A VectorList is a list of vectors with a specific layout and with the usage semantics of a 2D vector.

A 1D vector must be laid out in a contiguous memory region. A 2D vector is a vector of 1D vectors. Each of these 1D vectors that make up a 2D vector is called a “sub-vector” for the remainder of this document. The elements of a 2D vector can be accessed by indexing the 2D vector along the outer and inner dimensions as A[outer][inner].

The following two categories of layouts are supported:

1. VectorListLayout::DELTANELEMENTS is a memory efficient 2D vector layout. For legacy systems VectorListLayout::DELTAN served a similar purpose. Each sub-vector must be laid out as a contiguous memory region but the sub-vectors may may not be laid out contiguous with respect to each other in memory. Each sub-vector may have a different length.

2. VectorListLayout::ONE_PTR and other VectorListLayout layouts that are prefixed by SCALED_PTR are for Poplar runtime use only.

Functions

inline bool operator==(StringRef l, StringRef r)

inline bool operator!=(StringRef l, StringRef r)

inline bool operator<(StringRef l, StringRef r)

inline std::string operator+(StringRef l, StringRef r)

inline std::string &operator+=(std::string &s, StringRef r)

inline std::ostream &operator<<(std::ostream &os, const StringRef &s)

struct StringRef : public poplar::ArrayRef<char>

Public Functions

inline constexpr StringRef()

constexpr StringRef(const StringRef&) = default

StringRef(std::nullptr_t) = delete

inline StringRef(const std::string &s)

inline constexpr StringRef(const char *p, std::size_t len)

inline StringRef(const char *p)

template<std::size_t N>
inline constexpr StringRef(const char (&p)[N])

inline std::string cloneAsString() const

inline operator std::string() const