basic_string_view< Char > Class Template Reference

#include <core.h>

Public Types
typedef Char	char_type
typedef const Char *	iterator

Public Member Functions
FMT_CONSTEXPR	basic_string_view () FMT_NOEXCEPT
FMT_CONSTEXPR	basic_string_view (const Char *s, size_t count) FMT_NOEXCEPT
	basic_string_view (const Char *s)
template<typename Alloc >
FMT_CONSTEXPR	basic_string_view (const std::basic_string< Char, Alloc > &s) FMT_NOEXCEPT
FMT_CONSTEXPR const Char *	data () const
FMT_CONSTEXPR size_t	size () const
FMT_CONSTEXPR iterator	begin () const
FMT_CONSTEXPR iterator	end () const
FMT_CONSTEXPR void	remove_prefix (size_t n)
int	compare (basic_string_view other) const

Private Attributes
const Char *	data_
size_t	size_

Friends
bool	operator== (basic_string_view lhs, basic_string_view rhs)
bool	operator!= (basic_string_view lhs, basic_string_view rhs)
bool	operator< (basic_string_view lhs, basic_string_view rhs)
bool	operator<= (basic_string_view lhs, basic_string_view rhs)
bool	operator> (basic_string_view lhs, basic_string_view rhs)
bool	operator>= (basic_string_view lhs, basic_string_view rhs)

Detailed Description

template<typename Char>
class basic_string_view< Char >

An implementation of std::basic_string_view for pre-C++17. It provides a subset of the API. fmt::basic_string_view is used for format strings even if std::string_view is available to prevent issues when a library is compiled with a different -std option than the client code (which is not recommended).

Definition at line 350 of file core.h.

Member Typedef Documentation

template<typename Char>

typedef Char basic_string_view< Char >::char_type

Definition at line 356 of file core.h.

template<typename Char>

typedef const Char* basic_string_view< Char >::iterator

Definition at line 357 of file core.h.

Constructor & Destructor Documentation

template<typename Char>

FMT_CONSTEXPR basic_string_view< Char >::basic_string_view ( )

inline

Definition at line 359 of file core.h.

: data_(FMT_NULL), size_(0) {}

template<typename Char>

FMT_CONSTEXPR basic_string_view< Char >::basic_string_view ( const Char *  s, size_t  count  )

inline

Constructs a string reference object from a C string and a size.

Definition at line 362 of file core.h.

    : data_(s), size_(count) {}

template<typename Char>

basic_string_view< Char >::basic_string_view ( const Char *  s )

inline

Constructs a string reference object from a C string computing the size with std::char_traits<Char>::length.

Definition at line 371 of file core.h.

    : data_(s), size_(std::char_traits<Char>::length(s)) {}

template<typename Char>

template<typename Alloc >

FMT_CONSTEXPR basic_string_view< Char >::basic_string_view ( const std::basic_string< Char, Alloc > &  s )

inline

Constructs a string reference from a std::basic_string object.

Definition at line 376 of file core.h.

  : data_(s.data()), size_(s.size()) {}

Member Function Documentation

template<typename Char>

FMT_CONSTEXPR iterator basic_string_view< Char >::begin ( ) const

inline

Definition at line 391 of file core.h.

{ return data_; }

template<typename Char>

int basic_string_view< Char >::compare ( basic_string_view< Char >  other ) const

inline

Definition at line 400 of file core.h.

                                             {
    size_t str_size = size_ < other.size_ ? size_ : other.size_;
    int result = std::char_traits<Char>::compare(data_, other.data_, str_size);
    if (result == 0)
      result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
    return result;
  }

template<typename Char>

FMT_CONSTEXPR const Char* basic_string_view< Char >::data ( ) const

inline

Returns a pointer to the string data.

Definition at line 386 of file core.h.

{ return data_; }

template<typename Char>

FMT_CONSTEXPR iterator basic_string_view< Char >::end ( void  ) const

inline

Definition at line 392 of file core.h.

{ return data_ + size_; }

template<typename Char>

FMT_CONSTEXPR void basic_string_view< Char >::remove_prefix ( size_t  n )

inline

Definition at line 394 of file core.h.

                                             {
    data_ += n;
    size_ -= n;
  }

template<typename Char>

FMT_CONSTEXPR size_t basic_string_view< Char >::size ( void  ) const

inline

Returns the string size.

Definition at line 389 of file core.h.

{ return size_; }

Friends And Related Function Documentation

template<typename Char>

bool operator!= ( basic_string_view< Char >  lhs, basic_string_view< Char >  rhs  )

friend

Definition at line 411 of file core.h.

                                                                       {
    return lhs.compare(rhs) != 0;
  }

template<typename Char>

bool operator< ( basic_string_view< Char >  lhs, basic_string_view< Char >  rhs  )

friend

Definition at line 414 of file core.h.

                                                                      {
    return lhs.compare(rhs) < 0;
  }

template<typename Char>

bool operator<= ( basic_string_view< Char >  lhs, basic_string_view< Char >  rhs  )

friend

Definition at line 417 of file core.h.

                                                                       {
    return lhs.compare(rhs) <= 0;
  }

template<typename Char>

bool operator== ( basic_string_view< Char >  lhs, basic_string_view< Char >  rhs  )

friend

Definition at line 408 of file core.h.

                                                                       {
    return lhs.compare(rhs) == 0;
  }

template<typename Char>

bool operator> ( basic_string_view< Char >  lhs, basic_string_view< Char >  rhs  )

friend

Definition at line 420 of file core.h.

                                                                      {
    return lhs.compare(rhs) > 0;
  }

template<typename Char>

bool operator>= ( basic_string_view< Char >  lhs, basic_string_view< Char >  rhs  )

friend

Definition at line 423 of file core.h.

                                                                       {
    return lhs.compare(rhs) >= 0;
  }

Member Data Documentation

template<typename Char>

const Char* basic_string_view< Char >::data_

private

Definition at line 352 of file core.h.

template<typename Char>

size_t basic_string_view< Char >::size_

private

Definition at line 353 of file core.h.

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

• wire-cell-build/util/inc/spdlog/fmt/bundled/core.h