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size_type string_view::find(const_pointer str, size_type pos,
size_type n) const noexcept {
return find(string_view{str, n}, pos);
}
size_type string_view::find(const_pointer str, size_type pos) const noexcept {
return find(string_view{str, strlen(str)}, pos);
}
size_type string_view::rfind(string_view str, size_type pos) const noexcept {
if (size() < str.size())
return npos;
if (str.empty())
return std::min(size(), pos);
string_view tmp{data_, std::min(size() - str.size(), pos) + str.size()};
auto first = tmp.begin();
auto last = tmp.end();
auto i = std::find_end(first, last, str.begin(), str.end());
return i != last ? static_cast<size_type>(std::distance(first, i)) : npos;
}
size_type string_view::rfind(value_type ch, size_type pos) const noexcept {
return rfind(string_view{&ch, 1}, pos);
}
size_type string_view::rfind(const_pointer str, size_type pos,
size_type n) const noexcept {
return rfind(string_view{str, n}, pos);
}
size_type string_view::rfind(const_pointer str, size_type pos) const noexcept {
return rfind(string_view{str, strlen(str)}, pos);
}
size_type string_view::find_first_of(string_view str,
size_type pos) const noexcept {
if (empty() || str.empty())
return npos;
if (pos >= size())
return npos;
if (str.size() == 1)
return find(str.front(), pos);
string_view tmp{data_ + pos, size_ - pos};
auto first = tmp.begin();
auto last = tmp.end();
auto i = std::find_first_of(first, last, str.begin(), str.end());
return i != last ? static_cast<size_type>(std::distance(first, i)) + pos
: npos;
}
size_type string_view::find_first_of(value_type ch,
size_type pos) const noexcept {
return find(ch, pos);
}
size_type string_view::find_first_of(const_pointer str, size_type pos,
size_type n) const noexcept {
return find_first_of(string_view{str, n}, pos);
}
size_type string_view::find_first_of(const_pointer str,
size_type pos) const noexcept {
return find_first_of(string_view{str, strlen(str)}, pos);
}
size_type string_view::find_last_of(string_view str,
size_type pos) const noexcept {
string_view tmp{data_, pos < size_ ? pos + 1 : size_};
auto result = tmp.find_first_of(str);
if (result == npos)
return npos;
for (;;) {
auto next = tmp.find_first_of(str, result + 1);
if (next == npos)
return result;
result = next;
}
}
size_type string_view::find_last_of(value_type ch,
size_type pos) const noexcept {
return rfind(ch, pos);
}
size_type string_view::find_last_of(const_pointer str, size_type pos,
size_type n) const noexcept {
return find_last_of(string_view{str, n}, pos);
}
size_type string_view::find_last_of(const_pointer str,
size_type pos) const noexcept {
return find_last_of(string_view{str, strlen(str)}, pos);
}
size_type string_view::find_first_not_of(string_view str,
size_type pos) const noexcept {
if (str.size() == 1)
return find_first_not_of(str.front(), pos);