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diff --git a/src/third_party/boost-1.68.0/boost/utility/string_ref.hpp b/src/third_party/boost-1.68.0/boost/utility/string_ref.hpp
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@@ -1,553 +0,0 @@
-/*
- Copyright (c) Marshall Clow 2012-2015.
-
- 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
-
-*/
-
-#ifndef BOOST_STRING_REF_HPP
-#define BOOST_STRING_REF_HPP
-
-#include <boost/config.hpp>
-#include <boost/detail/workaround.hpp>
-#include <boost/utility/string_ref_fwd.hpp>
-#include <boost/throw_exception.hpp>
-
-#include <cstddef>
-#include <stdexcept>
-#include <algorithm>
-#include <iterator>
-#include <string>
-#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_REF_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_ref_traits_eq {
- public:
- string_ref_traits_eq ( charT ch ) : ch_(ch) {}
- bool operator () ( charT val ) const { return traits::eq ( ch_, val ); }
- charT ch_;
- };
- }
-
- template<typename charT, typename traits>
- class basic_string_ref {
- public:
- // types
- typedef charT value_type;
- typedef const charT* pointer;
- typedef const charT& reference;
- typedef const charT& const_reference;
- typedef 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_ref () BOOST_NOEXCEPT
- : ptr_(NULL), len_(0) {}
-
- // by defaulting these functions, basic_string_ref becomes
- // trivially copy/move constructible.
- BOOST_CONSTEXPR basic_string_ref (const basic_string_ref &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
- = default;
-#else
- : ptr_(rhs.ptr_), len_(rhs.len_) {}
-#endif
-
- basic_string_ref& operator=(const basic_string_ref &rhs) BOOST_NOEXCEPT
-#ifndef BOOST_STRING_REF_NO_CXX11_DEFAULTED_NOEXCEPT_FUNCTIONS
- = default;
-#else
- {
- ptr_ = rhs.ptr_;
- len_ = rhs.len_;
- return *this;
- }
-#endif
-
- basic_string_ref(const charT* str) BOOST_NOEXCEPT
- : ptr_(str), len_(traits::length(str)) {}
-
- template<typename Allocator>
- basic_string_ref(const std::basic_string<charT, traits, Allocator>& str)
- : ptr_(str.data()), len_(str.length()) {}
-
-// #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && !defined(BOOST_NO_CXX11_DELETED_FUNCTIONS)
-// // Constructing a string_ref from a temporary string is a bad idea
-// template<typename Allocator>
-// basic_string_ref( std::basic_string<charT, traits, Allocator>&&)
-// = delete;
-// #endif
-
- BOOST_CONSTEXPR basic_string_ref(const charT* str, size_type len) BOOST_NOEXCEPT
- : ptr_(str), len_(len) {}
-
-#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
-
- std::basic_string<charT, traits> to_string () const {
- return std::basic_string<charT, traits> ( begin(), end());
- }
-
- // iterators
- BOOST_CONSTEXPR const_iterator begin() const { return ptr_; }
- BOOST_CONSTEXPR const_iterator cbegin() const { return ptr_; }
- BOOST_CONSTEXPR const_iterator end() const { return ptr_ + len_; }
- BOOST_CONSTEXPR const_iterator cend() const { return ptr_ + len_; }
- const_reverse_iterator rbegin() const { return const_reverse_iterator (end()); }
- const_reverse_iterator crbegin() const { return const_reverse_iterator (end()); }
- const_reverse_iterator rend() const { return const_reverse_iterator (begin()); }
- const_reverse_iterator crend() const { return const_reverse_iterator (begin()); }
-
- // capacity
- BOOST_CONSTEXPR size_type size() const { return len_; }
- BOOST_CONSTEXPR size_type length() const { return len_; }
- BOOST_CONSTEXPR size_type max_size() const { return len_; }
- BOOST_CONSTEXPR bool empty() const { return len_ == 0; }
-
- // element access
- BOOST_CONSTEXPR const charT& operator[](size_type pos) const { return ptr_[pos]; }
-
- const charT& at(size_t pos) const {
- if ( pos >= len_ )
- BOOST_THROW_EXCEPTION( std::out_of_range ( "boost::string_ref::at" ) );
- return ptr_[pos];
- }
-
- BOOST_CONSTEXPR const charT& front() const { return ptr_[0]; }
- BOOST_CONSTEXPR const charT& back() const { return ptr_[len_-1]; }
- BOOST_CONSTEXPR const charT* data() const { return ptr_; }
-
- // modifiers
- void clear() { len_ = 0; }
- void remove_prefix(size_type n) {
- if ( n > len_ )
- n = len_;
- ptr_ += n;
- len_ -= n;
- }
-
- void remove_suffix(size_type n) {
- if ( n > len_ )
- n = len_;
- len_ -= n;
- }
-
-
- // basic_string_ref string operations
- basic_string_ref substr(size_type pos, size_type n=npos) const {
- if ( pos > size())
- BOOST_THROW_EXCEPTION( std::out_of_range ( "string_ref::substr" ) );
- return basic_string_ref(data() + pos, (std::min)(size() - pos, n));
- }
-
- int compare(basic_string_ref x) const {
- 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 );
- }
-
- bool starts_with(charT c) const { return !empty() && traits::eq ( c, front()); }
- bool starts_with(basic_string_ref x) const {
- return len_ >= x.len_ && traits::compare ( ptr_, x.ptr_, x.len_ ) == 0;
- }
-
- bool ends_with(charT c) const { return !empty() && traits::eq ( c, back()); }
- bool ends_with(basic_string_ref x) const {
- return len_ >= x.len_ && traits::compare ( ptr_ + len_ - x.len_, x.ptr_, x.len_ ) == 0;
- }
-
- size_type find(basic_string_ref s) const {
- const_iterator iter = std::search ( this->cbegin (), this->cend (),
- s.cbegin (), s.cend (), traits::eq );
- return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
- }
-
- size_type find(charT c) const {
- const_iterator iter = std::find_if ( this->cbegin (), this->cend (),
- detail::string_ref_traits_eq<charT, traits> ( c ));
- return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
- }
-
- size_type rfind(basic_string_ref s) const {
- const_reverse_iterator iter = std::search ( this->crbegin (), this->crend (),
- s.crbegin (), s.crend (), traits::eq );
- return iter == this->crend () ? npos : (std::distance(iter, this->crend()) - s.size());
- }
-
- size_type rfind(charT c) const {
- const_reverse_iterator iter = std::find_if ( this->crbegin (), this->crend (),
- detail::string_ref_traits_eq<charT, traits> ( c ));
- return iter == this->crend () ? npos : (this->size() - 1 - std::distance(this->crbegin(), iter));
- }
-
- size_type find_first_of(charT c) const { return find (c); }
- size_type find_last_of (charT c) const { return rfind (c); }
-
- size_type find_first_of(basic_string_ref s) const {
- const_iterator iter = std::find_first_of
- ( this->cbegin (), this->cend (), s.cbegin (), s.cend (), traits::eq );
- return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
- }
-
- size_type find_last_of(basic_string_ref s) const {
- const_reverse_iterator iter = std::find_first_of
- ( this->crbegin (), this->crend (), s.cbegin (), s.cend (), traits::eq );
- return iter == this->crend () ? npos : (this->size() - 1 - std::distance(this->crbegin(), iter));
- }
-
- size_type find_first_not_of(basic_string_ref s) const {
- const_iterator iter = find_not_of ( this->cbegin (), this->cend (), s );
- return iter == this->cend () ? npos : std::distance ( this->cbegin (), iter );
- }
-
- size_type find_first_not_of(charT c) const {
- for ( const_iterator iter = this->cbegin (); iter != this->cend (); ++iter )
- if ( !traits::eq ( c, *iter ))
- return std::distance ( this->cbegin (), iter );
- return npos;
- }
-
- size_type find_last_not_of(basic_string_ref s) const {
- const_reverse_iterator iter = find_not_of ( this->crbegin (), this->crend (), s );
- return iter == this->crend () ? npos : (this->size() - 1 - std::distance(this->crbegin(), iter));
- }
-
- size_type find_last_not_of(charT c) const {
- for ( const_reverse_iterator iter = this->crbegin (); iter != this->crend (); ++iter )
- if ( !traits::eq ( c, *iter ))
- return this->size() - 1 - std::distance(this->crbegin(), iter);
- return npos;
- }
-
- private:
-
- template <typename Iterator>
- Iterator find_not_of ( Iterator first, Iterator last, basic_string_ref s ) const {
- 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 bool operator==(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
- if ( x.size () != y.size ()) return false;
- return x.compare(y) == 0;
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator==(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
- return x == basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator==(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) == y;
- }
-
- template<typename charT, typename traits>
- inline bool operator==(basic_string_ref<charT, traits> x, const charT * y) {
- return x == basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits>
- inline bool operator==(const charT * x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) == y;
- }
-
-// Inequality
- template<typename charT, typename traits>
- inline bool operator!=(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
- if ( x.size () != y.size ()) return true;
- return x.compare(y) != 0;
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator!=(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
- return x != basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator!=(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) != y;
- }
-
- template<typename charT, typename traits>
- inline bool operator!=(basic_string_ref<charT, traits> x, const charT * y) {
- return x != basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits>
- inline bool operator!=(const charT * x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) != y;
- }
-
-// Less than
- template<typename charT, typename traits>
- inline bool operator<(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
- return x.compare(y) < 0;
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator<(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
- return x < basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator<(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) < y;
- }
-
- template<typename charT, typename traits>
- inline bool operator<(basic_string_ref<charT, traits> x, const charT * y) {
- return x < basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits>
- inline bool operator<(const charT * x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) < y;
- }
-
-// Greater than
- template<typename charT, typename traits>
- inline bool operator>(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
- return x.compare(y) > 0;
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator>(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
- return x > basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator>(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) > y;
- }
-
- template<typename charT, typename traits>
- inline bool operator>(basic_string_ref<charT, traits> x, const charT * y) {
- return x > basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits>
- inline bool operator>(const charT * x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) > y;
- }
-
-// Less than or equal to
- template<typename charT, typename traits>
- inline bool operator<=(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
- return x.compare(y) <= 0;
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator<=(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
- return x <= basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator<=(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) <= y;
- }
-
- template<typename charT, typename traits>
- inline bool operator<=(basic_string_ref<charT, traits> x, const charT * y) {
- return x <= basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits>
- inline bool operator<=(const charT * x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) <= y;
- }
-
-// Greater than or equal to
- template<typename charT, typename traits>
- inline bool operator>=(basic_string_ref<charT, traits> x, basic_string_ref<charT, traits> y) {
- return x.compare(y) >= 0;
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator>=(basic_string_ref<charT, traits> x, const std::basic_string<charT, traits, Allocator> & y) {
- return x >= basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits, typename Allocator>
- inline bool operator>=(const std::basic_string<charT, traits, Allocator> & x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) >= y;
- }
-
- template<typename charT, typename traits>
- inline bool operator>=(basic_string_ref<charT, traits> x, const charT * y) {
- return x >= basic_string_ref<charT, traits>(y);
- }
-
- template<typename charT, typename traits>
- inline bool operator>=(const charT * x, basic_string_ref<charT, traits> y) {
- return basic_string_ref<charT, traits>(x) >= y;
- }
-
- namespace detail {
-
- template<class charT, class traits>
- inline void sr_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 sr_insert_aligned(std::basic_ostream<charT, traits>& os, const basic_string_ref<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::sr_insert_fill_chars(os, alignment_size);
- if (os.good())
- os.write(str.data(), size);
- }
- else {
- os.write(str.data(), size);
- if (os.good())
- detail::sr_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_ref<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::sr_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_ref str, size_t* idx=0, int base=10) {
- return std::stoi ( std::string(str), idx, base );
- }
-
- inline long stol (string_ref str, size_t* idx=0, int base=10) {
- return std::stol ( std::string(str), idx, base );
- }
-
- inline unsigned long stoul (string_ref str, size_t* idx=0, int base=10) {
- return std::stoul ( std::string(str), idx, base );
- }
-
- inline long long stoll (string_ref str, size_t* idx=0, int base=10) {
- return std::stoll ( std::string(str), idx, base );
- }
-
- inline unsigned long long stoull (string_ref str, size_t* idx=0, int base=10) {
- return std::stoull ( std::string(str), idx, base );
- }
-
- inline float stof (string_ref str, size_t* idx=0) {
- return std::stof ( std::string(str), idx );
- }
-
- inline double stod (string_ref str, size_t* idx=0) {
- return std::stod ( std::string(str), idx );
- }
-
- inline long double stold (string_ref str, size_t* idx=0) {
- return std::stold ( std::string(str), idx );
- }
-
- inline int stoi (wstring_ref str, size_t* idx=0, int base=10) {
- return std::stoi ( std::wstring(str), idx, base );
- }
-
- inline long stol (wstring_ref str, size_t* idx=0, int base=10) {
- return std::stol ( std::wstring(str), idx, base );
- }
-
- inline unsigned long stoul (wstring_ref str, size_t* idx=0, int base=10) {
- return std::stoul ( std::wstring(str), idx, base );
- }
-
- inline long long stoll (wstring_ref str, size_t* idx=0, int base=10) {
- return std::stoll ( std::wstring(str), idx, base );
- }
-
- inline unsigned long long stoull (wstring_ref str, size_t* idx=0, int base=10) {
- return std::stoull ( std::wstring(str), idx, base );
- }
-
- inline float stof (wstring_ref str, size_t* idx=0) {
- return std::stof ( std::wstring(str), idx );
- }
-
- inline double stod (wstring_ref str, size_t* idx=0) {
- return std::stod ( std::wstring(str), idx );
- }
-
- inline long double stold (wstring_ref str, size_t* idx=0) {
- return std::stold ( std::wstring(str), idx );
- }
-#endif
-
-}
-
-#if 0
-namespace std {
- // Hashing
- template<> struct hash<boost::string_ref>;
- template<> struct hash<boost::u16string_ref>;
- template<> struct hash<boost::u32string_ref>;
- template<> struct hash<boost::wstring_ref>;
-}
-#endif
-
-#endif
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