King_DuckZ/duckhandy
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Implement operator==

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King_DuckZ 2018-07-21 23:30:07 +01:00
parent d29e83f78d
commit c64baaf917
1 changed files with 15 additions and 0 deletions
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15
include/duckhandy/string_bt.hpp
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@ -31,9 +31,14 @@ namespace dhandy {
template <std::size_t S, typename Ch> template <std::size_t S, typename Ch>
std::basic_ostream<Ch>& operator<< ( std::basic_ostream<Ch>& parStream, const string<S, Ch>& parString ); std::basic_ostream<Ch>& operator<< ( std::basic_ostream<Ch>& parStream, const string<S, Ch>& parString );
namespace implem {
template <std::size_t S, typename Ch> constexpr bool eq (const string<S, Ch>& l, const string<S, Ch>& r);
} //namespace implem
template <std::size_t S, typename Ch> template <std::size_t S, typename Ch>
class string { class string {
friend std::ostream& operator<< <>( std::ostream& parStream, const string<S>& parString ); friend std::ostream& operator<< <>( std::ostream& parStream, const string<S>& parString );
friend constexpr bool implem::eq<S, Ch> (const string<S, Ch>&, const string<S, Ch>&);
public: public:
using value_type = Ch; using value_type = Ch;
constexpr string ( const value_type* parString ); constexpr string ( const value_type* parString );
@ -42,6 +47,8 @@ namespace dhandy {
template <std::size_t S2> template <std::size_t S2>
constexpr string<S + S2 - 1, Ch> operator+ ( const string<S2, Ch>& parOther ) const; constexpr string<S + S2 - 1, Ch> operator+ ( const string<S2, Ch>& parOther ) const;
constexpr value_type operator[] ( std::size_t parIndex ) const; constexpr value_type operator[] ( std::size_t parIndex ) const;
constexpr bool operator== (const string<S, Ch>& other) const;
template <std::size_t S2> constexpr bool operator== (const string<S2, Ch>&) const { return false; }
template <typename... Args> template <typename... Args>
constexpr string ( Args... ); constexpr string ( Args... );
@ -64,6 +71,9 @@ namespace dhandy {
); );
} }
template <> constexpr inline bool eq (const string<1>& l, const string<1>& r) { return l[0] == r[0]; }
template <std::size_t S, typename Ch>
constexpr inline bool eq (const string<S, Ch>& l, const string<S, Ch>& r) { return l[0] == r[0] and eq(string<S-1>(l.m_data+1), string<S-1>(r.m_data+1)); }
} //namespace implem } //namespace implem
template <std::size_t S, typename Ch> template <std::size_t S, typename Ch>
@ -107,6 +117,11 @@ namespace dhandy {
constexpr string<S, Ch> make_string (const Ch (&parData)[S]) { constexpr string<S, Ch> make_string (const Ch (&parData)[S]) {
return string<S>(parData); return string<S>(parData);
} }
template <std::size_t S, typename Ch>
constexpr bool string<S, Ch>::operator== (const string<S, Ch>& other) const {
return implem::eq(*this, other);
}
} //namespace bt } //namespace bt
} //namespace dhandy } //namespace dhandy