old-nall/string/view.hpp
2016-07-03 13:35:22 +02:00

85 lines
1.7 KiB
C++

#pragma once
namespace nall {
string_view::string_view() {
_string = nullptr;
_data = "";
_size = 0;
}
string_view::string_view(const string_view& source) {
if(this == &source) return;
_string = nullptr;
_data = source._data;
_size = source._size;
}
string_view::string_view(string_view&& source) {
if(this == &source) return;
_string = source._string;
_data = source._data;
_size = source._size;
source._string = nullptr;
}
string_view::string_view(const char* data) {
_string = nullptr;
_data = data;
_size = -1; //defer length calculation, as it is often unnecessary
}
string_view::string_view(const char* data, uint size) {
_string = nullptr;
_data = data;
_size = size;
}
string_view::string_view(const string& source) {
_string = nullptr;
_data = source.data();
_size = source.size();
}
template<typename... P>
string_view::string_view(P&&... p) {
_string = new string{forward<P>(p)...};
_data = _string->data();
_size = _string->size();
}
string_view::~string_view() {
if(_string) delete _string;
}
auto string_view::operator=(const string_view& source) -> string_view& {
if(this == &source) return *this;
_string = nullptr;
_data = source._data;
_size = source._size;
return *this;
};
auto string_view::operator=(string_view&& source) -> string_view& {
if(this == &source) return *this;
_string = source._string;
_data = source._data;
_size = source._size;
source._string = nullptr;
return *this;
};
string_view::operator const char*() const {
return _data;
}
auto string_view::data() const -> const char* {
return _data;
}
auto string_view::size() const -> uint {
if(_size < 0) _size = strlen(_data);
return _size;
}
}