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Diffstat (limited to 'src/third_party/boost-1.69.0/boost/utility/string_view.hpp')
| -rw-r--r-- | src/third_party/boost-1.69.0/boost/utility/string_view.hpp | 710 |
1 files changed, 0 insertions, 710 deletions
diff --git a/src/third_party/boost-1.69.0/boost/utility/string_view.hpp b/src/third_party/boost-1.69.0/boost/utility/string_view.hpp deleted file mode 100644 index 11aa801e294..00000000000 --- a/src/third_party/boost-1.69.0/boost/utility/string_view.hpp +++ /dev/null @@ -1,710 +0,0 @@ -/* - Copyright (c) Marshall Clow 2012-2015. - Copyright (c) Beman Dawes 2015 - - Distributed under the Boost Software License, Version 1.0. (See accompanying - file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) - - For more information, see http://www.boost.org - - Based on the StringRef implementation in LLVM (http://llvm.org) and - N3422 by Jeffrey Yasskin - http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3442.html - Updated July 2015 to reflect the Library Fundamentals TS - http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4480.html -*/ - -#ifndef BOOST_STRING_VIEW_HPP -#define BOOST_STRING_VIEW_HPP - -#include <boost/config.hpp> -#include <boost/detail/workaround.hpp> -#include <boost/utility/string_view_fwd.hpp> -#include <boost/throw_exception.hpp> -#include <boost/container_hash/hash_fwd.hpp> - -#include <cstddef> -#include <stdexcept> -#include <algorithm> -#include <iterator> -#include <string> -#include <cstring> -#include <iosfwd> - -#if defined(BOOST_NO_CXX11_DEFAULTED_FUNCTIONS) || (defined(BOOST_GCC) && ((BOOST_GCC+0) / 100) <= 406) -// GCC 4.6 cannot handle a defaulted function with noexcept specifier -#define BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS -#endif - -namespace boost { - - namespace detail { - // A helper functor because sometimes we don't have lambdas - template <typename charT, typename traits> - class string_view_traits_eq { - public: - string_view_traits_eq ( charT ch ) : ch_(ch) {} - bool operator()( charT val ) const { return traits::eq (ch_, val); } - charT ch_; - }; - } - - template<typename charT, typename traits> // traits defaulted in string_view_fwd.hpp - class basic_string_view { - public: - // types - typedef traits traits_type; - typedef charT value_type; - typedef charT* pointer; - typedef const charT* const_pointer; - typedef charT& reference; - typedef const charT& const_reference; - typedef const_pointer const_iterator; // impl-defined - typedef const_iterator iterator; - typedef std::reverse_iterator<const_iterator> const_reverse_iterator; - typedef const_reverse_iterator reverse_iterator; - typedef std::size_t size_type; - typedef std::ptrdiff_t difference_type; - static BOOST_CONSTEXPR_OR_CONST size_type npos = size_type(-1); - - // construct/copy - BOOST_CONSTEXPR basic_string_view() BOOST_NOEXCEPT - : ptr_(NULL), len_(0) {} - - // by defaulting these functions, basic_string_ref becomes - // trivially copy/move constructible. - BOOST_CONSTEXPR basic_string_view(const basic_string_view &rhs) BOOST_NOEXCEPT -#ifndef BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS - = default; -#else - : ptr_(rhs.ptr_), len_(rhs.len_) {} -#endif - - basic_string_view& operator=(const basic_string_view &rhs) BOOST_NOEXCEPT -#ifndef BOOST_STRING_VIEW_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS - = default; -#else - { - ptr_ = rhs.ptr_; - len_ = rhs.len_; - return *this; - } -#endif - - template<typename Allocator> - basic_string_view(const std::basic_string<charT, traits, Allocator>& str) BOOST_NOEXCEPT - : ptr_(str.data()), len_(str.length()) {} - -// #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS) -// // Constructing a string_view from a temporary string is a bad idea -// template<typename Allocator> -// basic_string_view( std::basic_string<charT, traits, Allocator>&&) -// = delete; -// #endif - - BOOST_CONSTEXPR basic_string_view(const charT* str) - : ptr_(str), len_(traits::length(str)) {} - - BOOST_CONSTEXPR basic_string_view(const charT* str, size_type len) - : ptr_(str), len_(len) {} - - // iterators - BOOST_CONSTEXPR const_iterator begin() const BOOST_NOEXCEPT { return ptr_; } - BOOST_CONSTEXPR const_iterator cbegin() const BOOST_NOEXCEPT { return ptr_; } - BOOST_CONSTEXPR const_iterator end() const BOOST_NOEXCEPT { return ptr_ + len_; } - BOOST_CONSTEXPR const_iterator cend() const BOOST_NOEXCEPT { return ptr_ + len_; } - const_reverse_iterator rbegin() const BOOST_NOEXCEPT { return const_reverse_iterator(end()); } - const_reverse_iterator crbegin() const BOOST_NOEXCEPT { return const_reverse_iterator(end()); } - const_reverse_iterator rend() const BOOST_NOEXCEPT { return const_reverse_iterator(begin()); } - const_reverse_iterator crend() const BOOST_NOEXCEPT { return const_reverse_iterator(begin()); } - - // capacity - BOOST_CONSTEXPR size_type size() const BOOST_NOEXCEPT { return len_; } - BOOST_CONSTEXPR size_type length() const BOOST_NOEXCEPT { return len_; } - BOOST_CONSTEXPR size_type max_size() const BOOST_NOEXCEPT { return len_; } - BOOST_CONSTEXPR bool empty() const BOOST_NOEXCEPT { return len_ == 0; } - - // element access - BOOST_CONSTEXPR const_reference operator[](size_type pos) const BOOST_NOEXCEPT { return ptr_[pos]; } - - BOOST_CONSTEXPR const_reference at(size_t pos) const { - return pos >= len_ ? BOOST_THROW_EXCEPTION(std::out_of_range("boost::string_view::at")), ptr_[0] : ptr_[pos]; - } - - BOOST_CONSTEXPR const_reference front() const { return ptr_[0]; } - BOOST_CONSTEXPR const_reference back() const { return ptr_[len_-1]; } - BOOST_CONSTEXPR const_pointer data() const BOOST_NOEXCEPT { return ptr_; } - - // modifiers - void clear() BOOST_NOEXCEPT { len_ = 0; } // Boost extension - - BOOST_CXX14_CONSTEXPR void remove_prefix(size_type n) { - if ( n > len_ ) - n = len_; - ptr_ += n; - len_ -= n; - } - - BOOST_CXX14_CONSTEXPR void remove_suffix(size_type n) { - if ( n > len_ ) - n = len_; - len_ -= n; - } - - BOOST_CXX14_CONSTEXPR void swap(basic_string_view& s) BOOST_NOEXCEPT { - std::swap(ptr_, s.ptr_); - std::swap(len_, s.len_); - } - - // basic_string_view string operations -#ifndef BOOST_NO_CXX11_EXPLICIT_CONVERSION_OPERATORS - template<typename Allocator> - explicit operator std::basic_string<charT, traits, Allocator>() const { - return std::basic_string<charT, traits, Allocator>(begin(), end()); - } -#endif - -#ifndef BOOST_NO_CXX11_FUNCTION_TEMPLATE_DEFAULT_ARGS - template<typename Allocator = std::allocator<charT> > - std::basic_string<charT, traits, Allocator> to_string(const Allocator& a = Allocator()) const { - return std::basic_string<charT, traits, Allocator>(begin(), end(), a); - } -#else - std::basic_string<charT, traits> to_string() const { - return std::basic_string<charT, traits>(begin(), end()); - } - - template<typename Allocator> - std::basic_string<charT, traits, Allocator> to_string(const Allocator& a) const { - return std::basic_string<charT, traits, Allocator>(begin(), end(), a); - } -#endif - - size_type copy(charT* s, size_type n, size_type pos=0) const { - if (pos > size()) - BOOST_THROW_EXCEPTION(std::out_of_range("string_view::copy" )); - size_type rlen = (std::min)(n, len_ - pos); - traits_type::copy(s, data() + pos, rlen); - return rlen; - } - - BOOST_CXX14_CONSTEXPR basic_string_view substr(size_type pos, size_type n=npos) const { - if ( pos > size()) - BOOST_THROW_EXCEPTION( std::out_of_range ( "string_view::substr" ) ); - return basic_string_view(data() + pos, (std::min)(size() - pos, n)); - } - - BOOST_CXX14_CONSTEXPR int compare(basic_string_view x) const BOOST_NOEXCEPT { - const int cmp = traits::compare(ptr_, x.ptr_, (std::min)(len_, x.len_)); - return cmp != 0 ? cmp : (len_ == x.len_ ? 0 : len_ < x.len_ ? -1 : 1); - } - - BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, basic_string_view x) - const BOOST_NOEXCEPT { - return substr(pos1, n1).compare(x); - } - - BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, - basic_string_view x, size_type pos2, size_type n2) const { - return substr(pos1, n1).compare(x.substr(pos2, n2)); - } - - BOOST_CXX14_CONSTEXPR int compare(const charT* x) const { - return compare(basic_string_view(x)); - } - - BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, const charT* x) const { - return substr(pos1, n1).compare(basic_string_view(x)); - } - - BOOST_CXX14_CONSTEXPR int compare(size_type pos1, size_type n1, - const charT* x, size_type n2) const { - return substr(pos1, n1).compare(basic_string_view(x, n2)); - } - - // Searches - BOOST_CONSTEXPR bool starts_with(charT c) const BOOST_NOEXCEPT { // Boost extension - return !empty() && traits::eq(c, front()); - } - - BOOST_CONSTEXPR bool starts_with(basic_string_view x) const BOOST_NOEXCEPT { // Boost extension - return len_ >= x.len_ && traits::compare(ptr_, x.ptr_, x.len_) == 0; - } - - BOOST_CONSTEXPR bool ends_with(charT c) const BOOST_NOEXCEPT { // Boost extension - return !empty() && traits::eq(c, back()); - } - - BOOST_CONSTEXPR bool ends_with(basic_string_view x) const BOOST_NOEXCEPT { // Boost extension - return len_ >= x.len_ && - traits::compare(ptr_ + len_ - x.len_, x.ptr_, x.len_) == 0; - } - - // find - BOOST_CXX14_CONSTEXPR size_type find(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT { - if (pos > size()) - return npos; - if (s.empty()) - return pos; - if (s.size() > size() - pos) - return npos; - const charT* cur = ptr_ + pos; - const charT* last = cend() - s.size() + 1; - for (; cur != last ; ++cur) { - cur = traits::find(cur, last - cur, s[0]); - if (!cur) - return npos; - if (traits::compare(cur, s.cbegin(), s.size()) == 0) - return cur - ptr_; - } - return npos; - } - BOOST_CXX14_CONSTEXPR size_type find(charT c, size_type pos = 0) const BOOST_NOEXCEPT { - if (pos > size()) - return npos; - const charT* ret_ptr = traits::find(ptr_ + pos, len_ - pos, c); - if (ret_ptr) - return ret_ptr - ptr_; - return npos; - } - BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT - { return find(basic_string_view(s, n), pos); } - BOOST_CXX14_CONSTEXPR size_type find(const charT* s, size_type pos = 0) const BOOST_NOEXCEPT - { return find(basic_string_view(s), pos); } - - // rfind - BOOST_CXX14_CONSTEXPR size_type rfind(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT { - if (len_ < s.len_) - return npos; - if (pos > len_ - s.len_) - pos = len_ - s.len_; - if (s.len_ == 0u) // an empty string is always found - return pos; - for (const charT* cur = ptr_ + pos; ; --cur) { - if (traits::compare(cur, s.ptr_, s.len_) == 0) - return cur - ptr_; - if (cur == ptr_) - return npos; - }; - } - BOOST_CXX14_CONSTEXPR size_type rfind(charT c, size_type pos = npos) const BOOST_NOEXCEPT - { return rfind(basic_string_view(&c, 1), pos); } - BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT - { return rfind(basic_string_view(s, n), pos); } - BOOST_CXX14_CONSTEXPR size_type rfind(const charT* s, size_type pos = npos) const BOOST_NOEXCEPT - { return rfind(basic_string_view(s), pos); } - - // find_first_of - BOOST_CXX14_CONSTEXPR size_type find_first_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT { - if (pos >= len_ || s.len_ == 0) - return npos; - const_iterator iter = std::find_first_of - (this->cbegin () + pos, this->cend (), s.cbegin (), s.cend (), traits::eq); - return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter ); - } - BOOST_CXX14_CONSTEXPR size_type find_first_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT - { return find(c, pos); } - BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT - { return find_first_of(basic_string_view(s, n), pos); } - BOOST_CXX14_CONSTEXPR size_type find_first_of(const charT* s, size_type pos = 0) const BOOST_NOEXCEPT - { return find_first_of(basic_string_view(s), pos); } - - // find_last_of - BOOST_CXX14_CONSTEXPR size_type find_last_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT { - if (s.len_ == 0u) - return npos; - if (pos >= len_) - pos = 0; - else - pos = len_ - (pos+1); - const_reverse_iterator iter = std::find_first_of - ( this->crbegin () + pos, this->crend (), s.cbegin (), s.cend (), traits::eq ); - return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter); - } - BOOST_CXX14_CONSTEXPR size_type find_last_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT - { return find_last_of(basic_string_view(&c, 1), pos); } - BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT - { return find_last_of(basic_string_view(s, n), pos); } - BOOST_CXX14_CONSTEXPR size_type find_last_of(const charT* s, size_type pos = npos) const BOOST_NOEXCEPT - { return find_last_of(basic_string_view(s), pos); } - - // find_first_not_of - BOOST_CXX14_CONSTEXPR size_type find_first_not_of(basic_string_view s, size_type pos = 0) const BOOST_NOEXCEPT { - if (pos >= len_) - return npos; - if (s.len_ == 0) - return pos; - const_iterator iter = find_not_of ( this->cbegin () + pos, this->cend (), s ); - return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter ); - } - BOOST_CXX14_CONSTEXPR size_type find_first_not_of(charT c, size_type pos = 0) const BOOST_NOEXCEPT - { return find_first_not_of(basic_string_view(&c, 1), pos); } - BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT - { return find_first_not_of(basic_string_view(s, n), pos); } - BOOST_CXX14_CONSTEXPR size_type find_first_not_of(const charT* s, size_type pos = 0) const BOOST_NOEXCEPT - { return find_first_not_of(basic_string_view(s), pos); } - - // find_last_not_of - BOOST_CXX14_CONSTEXPR size_type find_last_not_of(basic_string_view s, size_type pos = npos) const BOOST_NOEXCEPT { - if (pos >= len_) - pos = len_ - 1; - if (s.len_ == 0u) - return pos; - pos = len_ - (pos+1); - const_reverse_iterator iter = find_not_of ( this->crbegin () + pos, this->crend (), s ); - return iter == this->crend () ? npos : reverse_distance ( this->crbegin (), iter ); - } - BOOST_CXX14_CONSTEXPR size_type find_last_not_of(charT c, size_type pos = npos) const BOOST_NOEXCEPT - { return find_last_not_of(basic_string_view(&c, 1), pos); } - BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos, size_type n) const BOOST_NOEXCEPT - { return find_last_not_of(basic_string_view(s, n), pos); } - BOOST_CXX14_CONSTEXPR size_type find_last_not_of(const charT* s, size_type pos = npos) const BOOST_NOEXCEPT - { return find_last_not_of(basic_string_view(s), pos); } - - private: - template <typename r_iter> - size_type reverse_distance(r_iter first, r_iter last) const BOOST_NOEXCEPT { - // Portability note here: std::distance is not NOEXCEPT, but calling it with a string_view::reverse_iterator will not throw. - return len_ - 1 - std::distance ( first, last ); - } - - template <typename Iterator> - Iterator find_not_of(Iterator first, Iterator last, basic_string_view s) const BOOST_NOEXCEPT { - for (; first != last ; ++first) - if ( 0 == traits::find(s.ptr_, s.len_, *first)) - return first; - return last; - } - - const charT *ptr_; - std::size_t len_; - }; - - -// Comparison operators -// Equality - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator==(basic_string_view<charT, traits> x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - if (x.size () != y.size ()) return false; - return x.compare(y) == 0; - } - -// Inequality - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator!=(basic_string_view<charT, traits> x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - if ( x.size () != y.size ()) return true; - return x.compare(y) != 0; - } - -// Less than - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator<(basic_string_view<charT, traits> x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return x.compare(y) < 0; - } - -// Greater than - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator>(basic_string_view<charT, traits> x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return x.compare(y) > 0; - } - -// Less than or equal to - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator<=(basic_string_view<charT, traits> x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return x.compare(y) <= 0; - } - -// Greater than or equal to - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator>=(basic_string_view<charT, traits> x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return x.compare(y) >= 0; - } - -// "sufficient additional overloads of comparison functions" - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator==(basic_string_view<charT, traits> x, - const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { - return x == basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator==(const std::basic_string<charT, traits, Allocator> & x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) == y; - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator==(basic_string_view<charT, traits> x, - const charT * y) BOOST_NOEXCEPT { - return x == basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator==(const charT * x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) == y; - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator!=(basic_string_view<charT, traits> x, - const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { - return x != basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator!=(const std::basic_string<charT, traits, Allocator> & x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) != y; - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator!=(basic_string_view<charT, traits> x, - const charT * y) BOOST_NOEXCEPT { - return x != basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator!=(const charT * x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) != y; - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator<(basic_string_view<charT, traits> x, - const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { - return x < basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator<(const std::basic_string<charT, traits, Allocator> & x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) < y; - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator<(basic_string_view<charT, traits> x, - const charT * y) BOOST_NOEXCEPT { - return x < basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator<(const charT * x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) < y; - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator>(basic_string_view<charT, traits> x, - const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { - return x > basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator>(const std::basic_string<charT, traits, Allocator> & x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) > y; - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator>(basic_string_view<charT, traits> x, - const charT * y) BOOST_NOEXCEPT { - return x > basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator>(const charT * x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) > y; - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator<=(basic_string_view<charT, traits> x, - const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { - return x <= basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator<=(const std::basic_string<charT, traits, Allocator> & x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) <= y; - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator<=(basic_string_view<charT, traits> x, - const charT * y) BOOST_NOEXCEPT { - return x <= basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator<=(const charT * x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) <= y; - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator>=(basic_string_view<charT, traits> x, - const std::basic_string<charT, traits, Allocator> & y) BOOST_NOEXCEPT { - return x >= basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits, typename Allocator> - inline BOOST_CXX14_CONSTEXPR bool operator>=(const std::basic_string<charT, traits, Allocator> & x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) >= y; - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator>=(basic_string_view<charT, traits> x, - const charT * y) BOOST_NOEXCEPT { - return x >= basic_string_view<charT, traits>(y); - } - - template<typename charT, typename traits> - inline BOOST_CXX14_CONSTEXPR bool operator>=(const charT * x, - basic_string_view<charT, traits> y) BOOST_NOEXCEPT { - return basic_string_view<charT, traits>(x) >= y; - } - - namespace detail { - - template<class charT, class traits> - inline void sv_insert_fill_chars(std::basic_ostream<charT, traits>& os, std::size_t n) { - enum { chunk_size = 8 }; - charT fill_chars[chunk_size]; - std::fill_n(fill_chars, static_cast< std::size_t >(chunk_size), os.fill()); - for (; n >= chunk_size && os.good(); n -= chunk_size) - os.write(fill_chars, static_cast< std::size_t >(chunk_size)); - if (n > 0 && os.good()) - os.write(fill_chars, n); - } - - template<class charT, class traits> - void sv_insert_aligned(std::basic_ostream<charT, traits>& os, const basic_string_view<charT,traits>& str) { - const std::size_t size = str.size(); - const std::size_t alignment_size = static_cast< std::size_t >(os.width()) - size; - const bool align_left = (os.flags() & std::basic_ostream<charT, traits>::adjustfield) == std::basic_ostream<charT, traits>::left; - if (!align_left) { - detail::sv_insert_fill_chars(os, alignment_size); - if (os.good()) - os.write(str.data(), size); - } - else { - os.write(str.data(), size); - if (os.good()) - detail::sv_insert_fill_chars(os, alignment_size); - } - } - - } // namespace detail - - // Inserter - template<class charT, class traits> - inline std::basic_ostream<charT, traits>& - operator<<(std::basic_ostream<charT, traits>& os, - const basic_string_view<charT,traits>& str) { - if (os.good()) { - const std::size_t size = str.size(); - const std::size_t w = static_cast< std::size_t >(os.width()); - if (w <= size) - os.write(str.data(), size); - else - detail::sv_insert_aligned(os, str); - os.width(0); - } - return os; - } - -#if 0 - // numeric conversions - // - // These are short-term implementations. - // In a production environment, I would rather avoid the copying. - // - inline int stoi (string_view str, size_t* idx=0, int base=10) { - return std::stoi ( std::string(str), idx, base ); - } - - inline long stol (string_view str, size_t* idx=0, int base=10) { - return std::stol ( std::string(str), idx, base ); - } - - inline unsigned long stoul (string_view str, size_t* idx=0, int base=10) { - return std::stoul ( std::string(str), idx, base ); - } - - inline long long stoll (string_view str, size_t* idx=0, int base=10) { - return std::stoll ( std::string(str), idx, base ); - } - - inline unsigned long long stoull (string_view str, size_t* idx=0, int base=10) { - return std::stoull ( std::string(str), idx, base ); - } - - inline float stof (string_view str, size_t* idx=0) { - return std::stof ( std::string(str), idx ); - } - - inline double stod (string_view str, size_t* idx=0) { - return std::stod ( std::string(str), idx ); - } - - inline long double stold (string_view str, size_t* idx=0) { - return std::stold ( std::string(str), idx ); - } - - inline int stoi (wstring_view str, size_t* idx=0, int base=10) { - return std::stoi ( std::wstring(str), idx, base ); - } - - inline long stol (wstring_view str, size_t* idx=0, int base=10) { - return std::stol ( std::wstring(str), idx, base ); - } - - inline unsigned long stoul (wstring_view str, size_t* idx=0, int base=10) { - return std::stoul ( std::wstring(str), idx, base ); - } - - inline long long stoll (wstring_view str, size_t* idx=0, int base=10) { - return std::stoll ( std::wstring(str), idx, base ); - } - - inline unsigned long long stoull (wstring_view str, size_t* idx=0, int base=10) { - return std::stoull ( std::wstring(str), idx, base ); - } - - inline float stof (wstring_view str, size_t* idx=0) { - return std::stof ( std::wstring(str), idx ); - } - - inline double stod (wstring_view str, size_t* idx=0) { - return std::stod ( std::wstring(str), idx ); - } - - inline long double stold (wstring_view str, size_t* idx=0) { - return std::stold ( std::wstring(str), idx ); - } -#endif - - template <class charT, class traits> - std::size_t hash_value(basic_string_view<charT, traits> s) { - return boost::hash_range(s.begin(), s.end()); - } -} - -#if 0 -namespace std { - // Hashing - template<> struct hash<boost::string_view>; - template<> struct hash<boost::u16string_view>; - template<> struct hash<boost::u32string_view>; - template<> struct hash<boost::wstring_view>; -} -#endif - -#endif |