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263 lines
7.0 KiB
C++
263 lines
7.0 KiB
C++
/**
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* \file trivstring.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Georg Baum
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "support/trivstring.h"
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#include "support/docstring.h"
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#ifdef STD_STRING_USES_COW
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#include <algorithm>
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#include <ostream>
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#include <stdexcept>
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using namespace std;
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namespace lyx {
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template trivial_string<char>::trivial_string(trivial_string const &);
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template trivial_string<char_type>::trivial_string(trivial_string const &);
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template<typename Char>
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trivial_string<Char>::trivial_string(trivial_string const & that) : size_(that.size_)
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{
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if (use_sso())
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copy(that.data_sso(), that.data_sso() + size_ + 1, data_sso());
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else if (size_ > 0) {
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data_ = new Char[size_ + 1];
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copy(that.data_, that.data_ + size_ + 1, data_);
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} else {
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// Happens only for really big Char types
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data_ = 0;
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}
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}
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template<typename Char>
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trivial_string<Char>::trivial_string(Char const * that, size_t n) : size_(n)
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{
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if (use_sso()) {
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copy(that, that + size_, data_sso());
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data_sso()[size_] = '\0';
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} else if (size_ > 0) {
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data_ = new Char[size_ + 1];
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copy(that, that + size_, data_);
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data_[size_] = '\0';
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} else {
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// Happens only for really big Char types
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data_ = 0;
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}
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}
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template trivial_string<char>::trivial_string(string const &);
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template trivial_string<char_type>::trivial_string(docstring const &);
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template<typename Char>
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trivial_string<Char>::trivial_string(_stdstring const & that)
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: size_(that.length())
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{
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if (use_sso()) {
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copy(that.begin(), that.end(), data_sso());
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data_sso()[size_] = '\0';
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} else if (size_ > 0) {
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data_ = new Char[size_ + 1];
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copy(that.begin(), that.end(), data_);
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data_[size_] = '\0';
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} else {
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// Happens only for really big Char types
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data_ = 0;
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}
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}
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template trivial_string<char> &
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trivial_string<char>::operator=(trivial_string const &);
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template trivial_string<char_type> &
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trivial_string<char_type>::operator=(trivial_string const &);
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template<typename Char>
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trivial_string<Char> & trivial_string<Char>::operator=(trivial_string const & that)
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{
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if (&that == this)
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return *this;
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if (!use_sso())
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delete[] data_;
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size_ = that.size_;
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if (use_sso())
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copy(that.data_sso(), that.data_sso() + size_ + 1, data_sso());
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else if (size_ > 0) {
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data_ = new Char[size_ + 1];
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copy(that.data_, that.data_ + size_ + 1, data_);
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} else {
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// Happens only for really big Char types
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data_ = 0;
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}
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return *this;
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}
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template trivial_string<char> &
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trivial_string<char>::operator=(string const &);
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template trivial_string<char_type> &
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trivial_string<char_type>::operator=(docstring const &);
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template<typename Char>
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trivial_string<Char> &
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trivial_string<Char>::operator=(_stdstring const & that)
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{
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if (!use_sso())
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delete[] data_;
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size_ = that.size();
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if (use_sso()) {
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copy(that.begin(), that.end(), data_sso());
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data_sso()[size_] = '\0';
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} else if (size_ > 0) {
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data_ = new Char[size_ + 1];
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copy(that.begin(), that.end(), data_);
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} else {
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// Happens only for really big Char types
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data_ = 0;
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}
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return *this;
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}
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template void
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trivial_string<char>::swap(trivial_string<char> &);
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template void
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trivial_string<char_type>::swap(trivial_string<char_type> &);
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template<typename Char>
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void trivial_string<Char>::swap(trivial_string & that)
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{
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size_t const sizetmp = that.size_;
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that.size_ = size_;
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size_ = sizetmp;
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Char * const datatmp = that.data_;
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that.data_ = data_;
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data_ = datatmp;
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}
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template<typename Char>
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int trivial_string<Char>::compare(trivial_string const & other) const
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{
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size_t const lsize = this->length();
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size_t const rsize = other.length();
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size_t const len = min(lsize, rsize);
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int r = char_traits<Char>::compare(c_str(), other.c_str(), len);
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if (r == 0) {
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if (lsize > rsize)
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r = 1;
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else if (lsize < rsize)
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r = -1;
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}
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return r;
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}
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template trivial_string<char> trivial_string<char>::substr(size_t, size_t) const;
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template trivial_string<char_type> trivial_string<char_type>::substr(size_t, size_t) const;
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template<typename Char>
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trivial_string<Char> trivial_string<Char>::substr(size_t pos, size_t n) const
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{
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if (pos > length())
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throw out_of_range("trivial_string::substr");
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if (n == _stdstring::npos)
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n = length() - pos;
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size_t const l = min(pos + n, length());
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return trivial_string(c_str() + pos, l - pos);
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}
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template trivial_string<char>::operator string() const;
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template trivial_string<char_type>::operator docstring() const;
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template<typename Char>
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trivial_string<Char>::operator _stdstring() const
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{
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if (use_sso())
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return _stdstring(data_sso(), size_);
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if (size_ > 0)
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return _stdstring(data_, size_);
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// Happens only for really big Char types
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return _stdstring();
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}
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template char const * trivial_string<char>::c_str() const;
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template char_type const * trivial_string<char_type>::c_str() const;
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template<typename Char> Char const * trivial_string<Char>::c_str() const
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{
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if (use_sso())
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return data_sso();
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if (size_ > 0)
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return data_;
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// Happens only for really big Char types
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static const Char empty_char = '\0';
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return &empty_char;
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}
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template char trivial_string<char>::operator[](size_t) const;
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template char_type trivial_string<char_type>::operator[](size_t) const;
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template <typename Char> Char trivial_string<Char>::operator[](size_t i) const
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{
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return c_str()[i];
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}
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template bool operator<(trivial_string<char> const &,
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trivial_string<char> const &);
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template bool operator<(trivial_string<char_type> const &,
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trivial_string<char_type> const &);
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template <typename Char>
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bool operator<(trivial_string<Char> const & lhs, trivial_string<Char> const & rhs)
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{
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return lhs.compare(rhs) < 0;
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}
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template bool operator==(trivial_string<char> const &,
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trivial_string<char> const &);
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template bool operator==(trivial_string<char_type> const &,
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trivial_string<char_type> const &);
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template <typename Char>
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bool operator==(trivial_string<Char> const & lhs, trivial_string<Char> const & rhs)
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{
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return lhs.compare(rhs) == 0;
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}
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template bool operator==(trivial_string<char> const &, char const *);
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template bool operator==(trivial_string<char_type> const &, char_type const *);
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template <typename Char>
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bool operator==(trivial_string<Char> const & lhs, Char const * rhs)
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{
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return lhs.compare(trivial_string<Char>(rhs)) == 0;
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}
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template bool operator==(char const *, trivial_string<char> const &);
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template bool operator==(char_type const *, trivial_string<char_type> const &);
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template <typename Char>
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bool operator==(Char const * lhs, trivial_string<Char> const & rhs)
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{
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return rhs.compare(trivial_string<Char>(lhs)) == 0;
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}
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template ostream & operator<<(ostream &, trivial_string<char> const &);
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template odocstream & operator<<(odocstream &, trivial_string<char_type> const &);
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template <typename Char>
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basic_ostream<Char, char_traits<Char> > &
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operator<<(basic_ostream<Char, char_traits<Char> > & os, trivial_string<Char> const & s)
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{
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return os << basic_string<Char, char_traits<Char>, allocator<Char> >(s);
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}
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} // namespace lyx
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#endif
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