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