fix pretty printer for recursive types
This commit is contained in:
parent
310d119ffb
commit
4d25fc25c4
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@ -11,6 +11,9 @@ signed main() {
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vector<int> pi{3,1,4,1,5,9,2,6};
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dbg(pi);
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dbg(vector<int>{3,1,4,1,5,9,2,6});
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dbg(pi);
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dbg(vector<pair<int, int>>{{3,1},{4,1}});
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dbg(vector<pair<int, vector<string>>>{{3,{"hi"}},{4,{"hello", "world"}}});
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dbg(set<int>{3,1,4});
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dbg(map<int, string>{{3,"three"},{1,"one"}});
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cout << "hi\n";
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}
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@ -21,424 +21,430 @@
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#include <utility>
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#include <valarray>
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namespace pretty_print
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namespace soi {
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template<typename T, typename TChar, typename TCharTraits>
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std::basic_ostream<TChar, TCharTraits> &
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print(std::basic_ostream<TChar, TCharTraits> & stream, const T& x);
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namespace detail
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{
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namespace detail
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// SFINAE type trait to detect whether T::const_iterator exists.
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struct sfinae_base
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{
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using yes = char;
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using no = yes[2];
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};
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template <typename T>
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struct has_const_iterator : private sfinae_base
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{
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private:
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template <typename C> static yes & test(typename C::const_iterator*);
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template <typename C> static no & test(...);
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public:
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static const bool value = sizeof(test<T>(nullptr)) == sizeof(yes);
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using type = T;
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};
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template <typename T>
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struct has_begin_end : private sfinae_base
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{
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private:
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template <typename C>
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static yes & f(typename std::enable_if<
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std::is_same<decltype(static_cast<typename C::const_iterator(C::*)() const>(&C::begin)),
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typename C::const_iterator(C::*)() const>::value>::type *);
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template <typename C> static no & f(...);
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template <typename C>
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static yes & g(typename std::enable_if<
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std::is_same<decltype(static_cast<typename C::const_iterator(C::*)() const>(&C::end)),
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typename C::const_iterator(C::*)() const>::value, void>::type*);
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template <typename C> static no & g(...);
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public:
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static bool const beg_value = sizeof(f<T>(nullptr)) == sizeof(yes);
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static bool const end_value = sizeof(g<T>(nullptr)) == sizeof(yes);
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};
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} // namespace detail
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// Holds the delimiter values for a specific character type
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template <typename TChar>
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struct delimiters_values
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{
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using char_type = TChar;
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const char_type * prefix;
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const char_type * delimiter;
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const char_type * postfix;
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};
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// Defines the delimiter values for a specific container and character type
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template <typename T, typename TChar>
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struct delimiters
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{
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using type = delimiters_values<TChar>;
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static const type values;
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};
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// Functor to pretty_print containers. You can use this directly if you want
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// to specificy a non-default delimiters type. The pretty_printing logic can
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// be customized by specializing the nested template.
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template <typename T,
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typename TChar = char,
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typename TCharTraits = ::std::char_traits<TChar>,
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typename TDelimiters = delimiters<T, TChar>>
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struct pretty_print_container_helper
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{
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using delimiters_type = TDelimiters;
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using ostream_type = std::basic_ostream<TChar, TCharTraits>;
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template <typename U>
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struct pretty_printer
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{
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// SFINAE type trait to detect whether T::const_iterator exists.
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struct sfinae_base
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static void pretty_print_body(const U & c, ostream_type & stream)
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{
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using yes = char;
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using no = yes[2];
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};
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using std::begin;
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using std::end;
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template <typename T>
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struct has_const_iterator : private sfinae_base
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{
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private:
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template <typename C> static yes & test(typename C::const_iterator*);
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template <typename C> static no & test(...);
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public:
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static const bool value = sizeof(test<T>(nullptr)) == sizeof(yes);
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using type = T;
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};
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auto it = begin(c);
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const auto the_end = end(c);
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template <typename T>
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struct has_begin_end : private sfinae_base
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{
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private:
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template <typename C>
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static yes & f(typename std::enable_if<
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std::is_same<decltype(static_cast<typename C::const_iterator(C::*)() const>(&C::begin)),
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typename C::const_iterator(C::*)() const>::value>::type *);
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template <typename C> static no & f(...);
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template <typename C>
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static yes & g(typename std::enable_if<
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std::is_same<decltype(static_cast<typename C::const_iterator(C::*)() const>(&C::end)),
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typename C::const_iterator(C::*)() const>::value, void>::type*);
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template <typename C> static no & g(...);
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public:
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static bool const beg_value = sizeof(f<T>(nullptr)) == sizeof(yes);
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static bool const end_value = sizeof(g<T>(nullptr)) == sizeof(yes);
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};
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} // namespace detail
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// Holds the delimiter values for a specific character type
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template <typename TChar>
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struct delimiters_values
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{
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using char_type = TChar;
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const char_type * prefix;
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const char_type * delimiter;
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const char_type * postfix;
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};
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// Defines the delimiter values for a specific container and character type
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template <typename T, typename TChar>
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struct delimiters
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{
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using type = delimiters_values<TChar>;
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static const type values;
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};
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// Functor to print containers. You can use this directly if you want
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// to specificy a non-default delimiters type. The printing logic can
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// be customized by specializing the nested template.
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template <typename T,
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typename TChar = char,
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typename TCharTraits = ::std::char_traits<TChar>,
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typename TDelimiters = delimiters<T, TChar>>
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struct print_container_helper
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{
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using delimiters_type = TDelimiters;
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using ostream_type = std::basic_ostream<TChar, TCharTraits>;
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template <typename U>
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struct printer
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{
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static void print_body(const U & c, ostream_type & stream)
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{
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using std::begin;
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using std::end;
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auto it = begin(c);
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const auto the_end = end(c);
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if (it != the_end)
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if (it != the_end)
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{
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for ( ; ; )
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{
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stream << *it;
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{
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::soi::print(stream, *it);
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if (++it == the_end) break;
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if (++it == the_end) break;
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if (delimiters_type::values.delimiter != NULL)
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stream << delimiters_type::values.delimiter;
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}
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if (delimiters_type::values.delimiter != NULL)
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::soi::print(stream, delimiters_type::values.delimiter);
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}
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}
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}
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};
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}
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};
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print_container_helper(const T & container)
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pretty_print_container_helper(const T & container)
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: container_(container)
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{ }
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{ }
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inline void operator()(ostream_type & stream) const
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{
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if (delimiters_type::values.prefix != NULL)
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stream << delimiters_type::values.prefix;
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printer<T>::print_body(container_, stream);
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if (delimiters_type::values.postfix != NULL)
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stream << delimiters_type::values.postfix;
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}
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private:
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const T & container_;
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};
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// Specialization for pairs
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template <typename T, typename TChar, typename TCharTraits, typename TDelimiters>
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template <typename T1, typename T2>
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struct print_container_helper<T, TChar, TCharTraits, TDelimiters>::printer<std::pair<T1, T2>>
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inline void operator()(ostream_type & stream) const
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{
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using ostream_type = typename print_container_helper<T, TChar, TCharTraits, TDelimiters>::ostream_type;
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if (delimiters_type::values.prefix != NULL)
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::soi::print(stream, delimiters_type::values.prefix);
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static void print_body(const std::pair<T1, T2> & c, ostream_type & stream)
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{
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stream << c.first;
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if (print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter != NULL)
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stream << print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter;
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stream << c.second;
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}
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};
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pretty_printer<T>::pretty_print_body(container_, stream);
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// Specialization for tuples
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template <typename T, typename TChar, typename TCharTraits, typename TDelimiters>
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template <typename ...Args>
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struct print_container_helper<T, TChar, TCharTraits, TDelimiters>::printer<std::tuple<Args...>>
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{
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using ostream_type = typename print_container_helper<T, TChar, TCharTraits, TDelimiters>::ostream_type;
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using element_type = std::tuple<Args...>;
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template <std::size_t I> struct Int { };
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static void print_body(const element_type & c, ostream_type & stream)
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{
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tuple_print(c, stream, Int<0>());
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}
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static void tuple_print(const element_type &, ostream_type &, Int<sizeof...(Args)>)
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{
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}
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static void tuple_print(const element_type & c, ostream_type & stream,
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typename std::conditional<sizeof...(Args) != 0, Int<0>, std::nullptr_t>::type)
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{
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stream << std::get<0>(c);
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tuple_print(c, stream, Int<1>());
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}
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template <std::size_t N>
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static void tuple_print(const element_type & c, ostream_type & stream, Int<N>)
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{
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if (print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter != NULL)
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stream << print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter;
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stream << std::get<N>(c);
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tuple_print(c, stream, Int<N + 1>());
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}
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};
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// Prints a print_container_helper to the specified stream.
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template<typename T, typename TChar, typename TCharTraits, typename TDelimiters>
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inline std::basic_ostream<TChar, TCharTraits> & operator<<(
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std::basic_ostream<TChar, TCharTraits> & stream,
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const print_container_helper<T, TChar, TCharTraits, TDelimiters> & helper)
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{
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helper(stream);
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return stream;
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if (delimiters_type::values.postfix != NULL)
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::soi::print(stream, delimiters_type::values.postfix);
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}
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private:
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const T & container_;
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};
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// Basic is_container template; specialize to derive from std::true_type for all desired container types
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// Specialization for pairs
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template <typename T>
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struct is_container : public std::integral_constant<bool,
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detail::has_const_iterator<T>::value &&
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detail::has_begin_end<T>::beg_value &&
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detail::has_begin_end<T>::end_value> { };
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template <typename T, typename TChar, typename TCharTraits, typename TDelimiters>
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template <typename T1, typename T2>
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struct pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::pretty_printer<std::pair<T1, T2>>
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{
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using ostream_type = typename pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::ostream_type;
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template <typename T, std::size_t N>
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struct is_container<T[N]> : std::true_type { };
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static void pretty_print_body(const std::pair<T1, T2> & c, ostream_type & stream)
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{
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::soi::print(stream, c.first);
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if (pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter != NULL)
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::soi::print(stream, pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter);
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::soi::print(stream, c.second);
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}
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};
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// Specialization for tuples
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template <typename T, typename TChar, typename TCharTraits, typename TDelimiters>
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template <typename ...Args>
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struct pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::pretty_printer<std::tuple<Args...>>
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{
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using ostream_type = typename pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::ostream_type;
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using element_type = std::tuple<Args...>;
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template <std::size_t I> struct Int { };
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static void pretty_print_body(const element_type & c, ostream_type & stream)
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{
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tuple_pretty_print(c, stream, Int<0>());
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}
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static void tuple_pretty_print(const element_type &, ostream_type &, Int<sizeof...(Args)>)
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{
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}
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static void tuple_pretty_print(const element_type & c, ostream_type & stream,
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typename std::conditional<sizeof...(Args) != 0, Int<0>, std::nullptr_t>::type)
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{
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::soi::print(stream, std::get<0>(c));
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tuple_pretty_print(c, stream, Int<1>());
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}
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template <std::size_t N>
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struct is_container<char[N]> : std::false_type { };
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template <typename T>
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struct is_container<std::valarray<T>> : std::true_type { };
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template <typename T1, typename T2>
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struct is_container<std::pair<T1, T2>> : std::true_type { };
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template <typename ...Args>
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struct is_container<std::tuple<Args...>> : std::true_type { };
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// Default delimiters
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template <typename T> struct delimiters<T, char> { static const delimiters_values<char> values; };
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template <typename T> const delimiters_values<char> delimiters<T, char>::values = { "[", ", ", "]" };
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template <typename T> struct delimiters<T, wchar_t> { static const delimiters_values<wchar_t> values; };
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template <typename T> const delimiters_values<wchar_t> delimiters<T, wchar_t>::values = { L"[", L", ", L"]" };
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// Delimiters for (multi)set and unordered_(multi)set
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template <typename T, typename TComp, typename TAllocator>
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struct delimiters< ::std::set<T, TComp, TAllocator>, char> { static const delimiters_values<char> values; };
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template <typename T, typename TComp, typename TAllocator>
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const delimiters_values<char> delimiters< ::std::set<T, TComp, TAllocator>, char>::values = { "{", ", ", "}" };
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template <typename T, typename TComp, typename TAllocator>
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struct delimiters< ::std::set<T, TComp, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
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template <typename T, typename TComp, typename TAllocator>
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const delimiters_values<wchar_t> delimiters< ::std::set<T, TComp, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
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template <typename T, typename TComp, typename TAllocator>
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struct delimiters< ::std::multiset<T, TComp, TAllocator>, char> { static const delimiters_values<char> values; };
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template <typename T, typename TComp, typename TAllocator>
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const delimiters_values<char> delimiters< ::std::multiset<T, TComp, TAllocator>, char>::values = { "{", ", ", "}" };
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template <typename T, typename TComp, typename TAllocator>
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struct delimiters< ::std::multiset<T, TComp, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
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template <typename T, typename TComp, typename TAllocator>
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const delimiters_values<wchar_t> delimiters< ::std::multiset<T, TComp, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
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template <typename T, typename THash, typename TEqual, typename TAllocator>
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struct delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, char> { static const delimiters_values<char> values; };
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template <typename T, typename THash, typename TEqual, typename TAllocator>
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const delimiters_values<char> delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, char>::values = { "{", ", ", "}" };
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template <typename T, typename THash, typename TEqual, typename TAllocator>
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struct delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
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template <typename T, typename THash, typename TEqual, typename TAllocator>
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const delimiters_values<wchar_t> delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
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template <typename T, typename THash, typename TEqual, typename TAllocator>
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struct delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, char> { static const delimiters_values<char> values; };
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template <typename T, typename THash, typename TEqual, typename TAllocator>
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const delimiters_values<char> delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, char>::values = { "{", ", ", "}" };
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template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
struct delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
const delimiters_values<wchar_t> delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
|
||||
|
||||
|
||||
// Delimiters for pair and tuple
|
||||
|
||||
template <typename T1, typename T2> struct delimiters<std::pair<T1, T2>, char> { static const delimiters_values<char> values; };
|
||||
template <typename T1, typename T2> const delimiters_values<char> delimiters<std::pair<T1, T2>, char>::values = { "(", ", ", ")" };
|
||||
template <typename T1, typename T2> struct delimiters< ::std::pair<T1, T2>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
template <typename T1, typename T2> const delimiters_values<wchar_t> delimiters< ::std::pair<T1, T2>, wchar_t>::values = { L"(", L", ", L")" };
|
||||
|
||||
template <typename ...Args> struct delimiters<std::tuple<Args...>, char> { static const delimiters_values<char> values; };
|
||||
template <typename ...Args> const delimiters_values<char> delimiters<std::tuple<Args...>, char>::values = { "(", ", ", ")" };
|
||||
template <typename ...Args> struct delimiters< ::std::tuple<Args...>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
template <typename ...Args> const delimiters_values<wchar_t> delimiters< ::std::tuple<Args...>, wchar_t>::values = { L"(", L", ", L")" };
|
||||
|
||||
|
||||
// Type-erasing helper class for easy use of custom delimiters.
|
||||
// Requires TCharTraits = std::char_traits<TChar> and TChar = char or wchar_t, and MyDelims needs to be defined for TChar.
|
||||
// Usage: "cout << pretty_print::custom_delims<MyDelims>(x)".
|
||||
|
||||
struct custom_delims_base
|
||||
static void tuple_pretty_print(const element_type & c, ostream_type & stream, Int<N>)
|
||||
{
|
||||
virtual ~custom_delims_base() { }
|
||||
virtual std::ostream & stream(::std::ostream &) = 0;
|
||||
virtual std::wostream & stream(::std::wostream &) = 0;
|
||||
};
|
||||
if (pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter != NULL)
|
||||
::soi::print(stream, pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters>::delimiters_type::values.delimiter);
|
||||
|
||||
template <typename T, typename Delims>
|
||||
struct custom_delims_wrapper : custom_delims_base
|
||||
::soi::print(stream, std::get<N>(c));
|
||||
|
||||
tuple_pretty_print(c, stream, Int<N + 1>());
|
||||
}
|
||||
};
|
||||
|
||||
// Pretty_Prints a pretty_print_container_helper to the specified stream.
|
||||
|
||||
template<typename T, typename TChar, typename TCharTraits, typename TDelimiters>
|
||||
inline std::basic_ostream<TChar, TCharTraits> & pretty_print(
|
||||
std::basic_ostream<TChar, TCharTraits> & stream,
|
||||
const pretty_print_container_helper<T, TChar, TCharTraits, TDelimiters> & helper)
|
||||
{
|
||||
helper(stream);
|
||||
return stream;
|
||||
}
|
||||
|
||||
|
||||
// Basic is_container template; specialize to derive from std::true_type for all desired container types
|
||||
|
||||
template <typename T>
|
||||
struct is_container : public std::integral_constant<bool,
|
||||
detail::has_const_iterator<T>::value &&
|
||||
detail::has_begin_end<T>::beg_value &&
|
||||
detail::has_begin_end<T>::end_value> { };
|
||||
|
||||
template <typename T, std::size_t N>
|
||||
struct is_container<T[N]> : std::true_type { };
|
||||
|
||||
template <std::size_t N>
|
||||
struct is_container<char[N]> : std::false_type { };
|
||||
|
||||
template <typename T>
|
||||
struct is_container<std::valarray<T>> : std::true_type { };
|
||||
|
||||
template <typename T1, typename T2>
|
||||
struct is_container<std::pair<T1, T2>> : std::true_type { };
|
||||
|
||||
template <typename ...Args>
|
||||
struct is_container<std::tuple<Args...>> : std::true_type { };
|
||||
|
||||
|
||||
// Default delimiters
|
||||
|
||||
template <typename T> struct delimiters<T, char> { static const delimiters_values<char> values; };
|
||||
template <typename T> const delimiters_values<char> delimiters<T, char>::values = { "[", ", ", "]" };
|
||||
template <typename T> struct delimiters<T, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
template <typename T> const delimiters_values<wchar_t> delimiters<T, wchar_t>::values = { L"[", L", ", L"]" };
|
||||
|
||||
|
||||
// Delimiters for (multi)set and unordered_(multi)set
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
struct delimiters< ::std::set<T, TComp, TAllocator>, char> { static const delimiters_values<char> values; };
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
const delimiters_values<char> delimiters< ::std::set<T, TComp, TAllocator>, char>::values = { "{", ", ", "}" };
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
struct delimiters< ::std::set<T, TComp, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
const delimiters_values<wchar_t> delimiters< ::std::set<T, TComp, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
struct delimiters< ::std::multiset<T, TComp, TAllocator>, char> { static const delimiters_values<char> values; };
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
const delimiters_values<char> delimiters< ::std::multiset<T, TComp, TAllocator>, char>::values = { "{", ", ", "}" };
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
struct delimiters< ::std::multiset<T, TComp, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
|
||||
template <typename T, typename TComp, typename TAllocator>
|
||||
const delimiters_values<wchar_t> delimiters< ::std::multiset<T, TComp, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
struct delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, char> { static const delimiters_values<char> values; };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
const delimiters_values<char> delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, char>::values = { "{", ", ", "}" };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
struct delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
const delimiters_values<wchar_t> delimiters< ::std::unordered_set<T, THash, TEqual, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
struct delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, char> { static const delimiters_values<char> values; };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
const delimiters_values<char> delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, char>::values = { "{", ", ", "}" };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
struct delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
|
||||
template <typename T, typename THash, typename TEqual, typename TAllocator>
|
||||
const delimiters_values<wchar_t> delimiters< ::std::unordered_multiset<T, THash, TEqual, TAllocator>, wchar_t>::values = { L"{", L", ", L"}" };
|
||||
|
||||
|
||||
// Delimiters for pair and tuple
|
||||
|
||||
template <typename T1, typename T2> struct delimiters<std::pair<T1, T2>, char> { static const delimiters_values<char> values; };
|
||||
template <typename T1, typename T2> const delimiters_values<char> delimiters<std::pair<T1, T2>, char>::values = { "(", ", ", ")" };
|
||||
template <typename T1, typename T2> struct delimiters< ::std::pair<T1, T2>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
template <typename T1, typename T2> const delimiters_values<wchar_t> delimiters< ::std::pair<T1, T2>, wchar_t>::values = { L"(", L", ", L")" };
|
||||
|
||||
template <typename ...Args> struct delimiters<std::tuple<Args...>, char> { static const delimiters_values<char> values; };
|
||||
template <typename ...Args> const delimiters_values<char> delimiters<std::tuple<Args...>, char>::values = { "(", ", ", ")" };
|
||||
template <typename ...Args> struct delimiters< ::std::tuple<Args...>, wchar_t> { static const delimiters_values<wchar_t> values; };
|
||||
template <typename ...Args> const delimiters_values<wchar_t> delimiters< ::std::tuple<Args...>, wchar_t>::values = { L"(", L", ", L")" };
|
||||
|
||||
|
||||
// Type-erasing helper class for easy use of custom delimiters.
|
||||
// Requires TCharTraits = std::char_traits<TChar> and TChar = char or wchar_t, and MyDelims needs to be defined for TChar.
|
||||
// Usage: "cout << pretty_pretty_print::custom_delims<MyDelims>(x)".
|
||||
|
||||
struct custom_delims_base
|
||||
{
|
||||
virtual ~custom_delims_base() { }
|
||||
virtual std::ostream & stream(::std::ostream &) = 0;
|
||||
virtual std::wostream & stream(::std::wostream &) = 0;
|
||||
};
|
||||
|
||||
template <typename T, typename Delims>
|
||||
struct custom_delims_wrapper : custom_delims_base
|
||||
{
|
||||
custom_delims_wrapper(const T & t_) : t(t_) { }
|
||||
|
||||
std::ostream & stream(std::ostream & s)
|
||||
{
|
||||
custom_delims_wrapper(const T & t_) : t(t_) { }
|
||||
|
||||
std::ostream & stream(std::ostream & s)
|
||||
{
|
||||
return s << print_container_helper<T, char, std::char_traits<char>, Delims>(t);
|
||||
}
|
||||
|
||||
std::wostream & stream(std::wostream & s)
|
||||
{
|
||||
return s << print_container_helper<T, wchar_t, std::char_traits<wchar_t>, Delims>(t);
|
||||
}
|
||||
|
||||
private:
|
||||
const T & t;
|
||||
};
|
||||
|
||||
template <typename Delims>
|
||||
struct custom_delims
|
||||
{
|
||||
template <typename Container>
|
||||
custom_delims(const Container & c) : base(new custom_delims_wrapper<Container, Delims>(c)) { }
|
||||
|
||||
std::unique_ptr<custom_delims_base> base;
|
||||
};
|
||||
|
||||
template <typename TChar, typename TCharTraits, typename Delims>
|
||||
inline std::basic_ostream<TChar, TCharTraits> & operator<<(std::basic_ostream<TChar, TCharTraits> & s, const custom_delims<Delims> & p)
|
||||
{
|
||||
return p.base->stream(s);
|
||||
return pretty_print(s, pretty_print_container_helper<T, char, std::char_traits<char>, Delims>(t));
|
||||
}
|
||||
|
||||
|
||||
// A wrapper for a C-style array given as pointer-plus-size.
|
||||
// Usage: std::cout << pretty_print_array(arr, n) << std::endl;
|
||||
|
||||
template<typename T>
|
||||
struct array_wrapper_n
|
||||
std::wostream & stream(std::wostream & s)
|
||||
{
|
||||
typedef const T * const_iterator;
|
||||
typedef T value_type;
|
||||
return pretty_print(s, pretty_print_container_helper<T, wchar_t, std::char_traits<wchar_t>, Delims>(t));
|
||||
}
|
||||
|
||||
array_wrapper_n(const T * const a, size_t n) : _array(a), _n(n) { }
|
||||
inline const_iterator begin() const { return _array; }
|
||||
inline const_iterator end() const { return _array + _n; }
|
||||
private:
|
||||
const T & t;
|
||||
};
|
||||
|
||||
private:
|
||||
const T * const _array;
|
||||
size_t _n;
|
||||
};
|
||||
template <typename Delims>
|
||||
struct custom_delims
|
||||
{
|
||||
template <typename Container>
|
||||
custom_delims(const Container & c) : base(new custom_delims_wrapper<Container, Delims>(c)) { }
|
||||
|
||||
std::unique_ptr<custom_delims_base> base;
|
||||
};
|
||||
|
||||
template <typename TChar, typename TCharTraits, typename Delims>
|
||||
inline std::basic_ostream<TChar, TCharTraits> & pretty_print(std::basic_ostream<TChar, TCharTraits> & s, const custom_delims<Delims> & p)
|
||||
{
|
||||
return p.base->stream(s);
|
||||
}
|
||||
|
||||
|
||||
// A wrapper for hash-table based containers that offer local iterators to each bucket.
|
||||
// Usage: std::cout << bucket_print(m, 4) << std::endl; (Prints bucket 5 of container m.)
|
||||
// A wrapper for a C-style array given as pointer-plus-size.
|
||||
// Usage: std::cout << pretty_pretty_print_array(arr, n) << std::endl;
|
||||
|
||||
template <typename T>
|
||||
struct bucket_print_wrapper
|
||||
template<typename T>
|
||||
struct array_wrapper_n
|
||||
{
|
||||
typedef const T * const_iterator;
|
||||
typedef T value_type;
|
||||
|
||||
array_wrapper_n(const T * const a, size_t n) : _array(a), _n(n) { }
|
||||
inline const_iterator begin() const { return _array; }
|
||||
inline const_iterator end() const { return _array + _n; }
|
||||
|
||||
private:
|
||||
const T * const _array;
|
||||
size_t _n;
|
||||
};
|
||||
|
||||
|
||||
// A wrapper for hash-table based containers that offer local iterators to each bucket.
|
||||
// Usage: std::cout << bucket_pretty_print(m, 4) << std::endl; (Pretty_Prints bucket 5 of container m.)
|
||||
|
||||
template <typename T>
|
||||
struct bucket_pretty_print_wrapper
|
||||
{
|
||||
typedef typename T::const_local_iterator const_iterator;
|
||||
typedef typename T::size_type size_type;
|
||||
|
||||
const_iterator begin() const
|
||||
{
|
||||
typedef typename T::const_local_iterator const_iterator;
|
||||
typedef typename T::size_type size_type;
|
||||
return m_map.cbegin(n);
|
||||
}
|
||||
|
||||
const_iterator begin() const
|
||||
{
|
||||
return m_map.cbegin(n);
|
||||
}
|
||||
const_iterator end() const
|
||||
{
|
||||
return m_map.cend(n);
|
||||
}
|
||||
|
||||
const_iterator end() const
|
||||
{
|
||||
return m_map.cend(n);
|
||||
}
|
||||
bucket_pretty_print_wrapper(const T & m, size_type bucket) : m_map(m), n(bucket) { }
|
||||
|
||||
bucket_print_wrapper(const T & m, size_type bucket) : m_map(m), n(bucket) { }
|
||||
private:
|
||||
const T & m_map;
|
||||
const size_type n;
|
||||
};
|
||||
|
||||
private:
|
||||
const T & m_map;
|
||||
const size_type n;
|
||||
};
|
||||
|
||||
} // namespace pretty_print
|
||||
} // namespace soi
|
||||
|
||||
|
||||
/*
|
||||
// Global accessor functions for the convenience wrappers
|
||||
|
||||
template<typename T>
|
||||
inline pretty_print::array_wrapper_n<T> pretty_print_array(const T * const a, size_t n)
|
||||
inline pretty_pretty_print::array_wrapper_n<T> pretty_pretty_print_array(const T * const a, size_t n)
|
||||
{
|
||||
return pretty_print::array_wrapper_n<T>(a, n);
|
||||
return pretty_pretty_print::array_wrapper_n<T>(a, n);
|
||||
}
|
||||
|
||||
template <typename T> pretty_print::bucket_print_wrapper<T>
|
||||
bucket_print(const T & m, typename T::size_type n)
|
||||
template <typename T> pretty_pretty_print::bucket_pretty_print_wrapper<T>
|
||||
bucket_pretty_print(const T & m, typename T::size_type n)
|
||||
{
|
||||
return pretty_print::bucket_print_wrapper<T>(m, n);
|
||||
return pretty_pretty_print::bucket_pretty_print_wrapper<T>(m, n);
|
||||
}
|
||||
|
||||
|
||||
// Main magic entry point: An overload snuck into namespace std.
|
||||
// Can we do better?
|
||||
|
||||
namespace std
|
||||
{
|
||||
// Prints a container to the stream using default delimiters
|
||||
|
||||
template<typename T, typename TChar, typename TCharTraits>
|
||||
inline typename enable_if< ::pretty_print::is_container<T>::value,
|
||||
basic_ostream<TChar, TCharTraits> &>::type
|
||||
operator<<(basic_ostream<TChar, TCharTraits> & stream, const T & container)
|
||||
{
|
||||
return stream << ::pretty_print::print_container_helper<T, TChar, TCharTraits>(container);
|
||||
}
|
||||
}
|
||||
*/
|
||||
|
||||
#endif // SOI_PRETTY_PRINT
|
||||
namespace soi
|
||||
{
|
||||
// Pretty_Prints a container to the stream using default delimiters
|
||||
|
||||
template<typename T, typename TChar, typename TCharTraits>
|
||||
inline typename std::enable_if< ::soi::is_container<T>::value,
|
||||
std::basic_ostream<TChar, TCharTraits> &>::type
|
||||
pretty_print(std::basic_ostream<TChar, TCharTraits> & stream, const T & container)
|
||||
{
|
||||
return ::soi::print(stream, ::soi::pretty_print_container_helper<T, TChar, TCharTraits>(container));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
#endif // SOI_PRETTY_PRETTY_PRINT
|
||||
|
|
|
|||
|
|
@ -23,7 +23,7 @@
|
|||
|
||||
#include "soi-pretty.hpp"
|
||||
|
||||
namespace soi_h {
|
||||
namespace soi {
|
||||
|
||||
namespace detail {
|
||||
|
||||
|
|
@ -102,7 +102,7 @@ CONSTEXPR14_TN
|
|||
static_string
|
||||
type_name()
|
||||
{
|
||||
const int k = sizeof("constexpr soi_h::detail:: T =")/sizeof(char);
|
||||
const int k = sizeof("constexpr soi::detail:: T")/sizeof(char);
|
||||
#ifdef __clang__
|
||||
static_string p = __PRETTY_FUNCTION__;
|
||||
return static_string(p.data() + 31 + k, p.size() - 31 - k - 1);
|
||||
|
|
@ -215,7 +215,7 @@ T&& dbg_print(T&& value,
|
|||
char const* expression) {
|
||||
const T& ref = value;
|
||||
std::stringstream value_buffer; // avoid nesting of dbg macros within print functinos
|
||||
soi_h::pretty_print(value_buffer, ref);
|
||||
soi::print(value_buffer, ref);
|
||||
|
||||
std::cerr << ANSI_DEBUG
|
||||
<< "[" << file << ":" << line
|
||||
|
|
@ -257,8 +257,8 @@ T&& identity(T&& t) {
|
|||
#define dbg(...) dbg_macro::identity(__VA_ARGS__)
|
||||
#else
|
||||
#define dbg(...) \
|
||||
soi_h::detail::dbg_print((__VA_ARGS__), \
|
||||
soi_h::detail::sanitized_type_name<decltype(__VA_ARGS__)>(), \
|
||||
soi::detail::dbg_print((__VA_ARGS__), \
|
||||
soi::detail::sanitized_type_name<decltype(__VA_ARGS__)>(), \
|
||||
__FILE__, \
|
||||
__LINE__, \
|
||||
__func__, \
|
||||
|
|
|
|||
|
|
@ -3,7 +3,7 @@
|
|||
// (See accompanying file LICENSE_1_0.txt or copy at
|
||||
// http://www.boost.org/LICENSE_1_0.txt)
|
||||
//
|
||||
// pretty printing with c++
|
||||
// pretty pretty_printing with c++
|
||||
//
|
||||
|
||||
#ifndef SOI_PRETTY
|
||||
|
|
@ -11,14 +11,7 @@
|
|||
|
||||
#include "prettyprint.hpp"
|
||||
|
||||
namespace soi_h {
|
||||
|
||||
template<typename T, typename TChar, typename TCharTraits>
|
||||
inline typename std::enable_if< ::pretty_print::is_container<T>::value,
|
||||
std::basic_ostream<TChar, TCharTraits> &>::type
|
||||
pretty_print(std::basic_ostream<TChar, TCharTraits> & stream, const T & container) {
|
||||
return stream << ::pretty_print::print_container_helper<T, TChar, TCharTraits>(container);
|
||||
}
|
||||
namespace soi {
|
||||
|
||||
template<typename TChar, typename TCharTraits>
|
||||
std::basic_ostream<TChar, TCharTraits> &
|
||||
|
|
@ -65,12 +58,18 @@ pretty_print(std::basic_ostream<TChar, TCharTraits> & stream, char c) {
|
|||
}
|
||||
|
||||
template<typename T, typename TChar, typename TCharTraits>
|
||||
inline typename std::enable_if< !::pretty_print::is_container<T>::value,
|
||||
inline typename std::enable_if< !::soi::is_container<T>::value,
|
||||
std::basic_ostream<TChar, TCharTraits> &>::type
|
||||
pretty_print(std::basic_ostream<TChar, TCharTraits> & stream, const T& x) {
|
||||
return stream << x;
|
||||
}
|
||||
|
||||
|
||||
template<typename T, typename TChar, typename TCharTraits>
|
||||
std::basic_ostream<TChar, TCharTraits> &
|
||||
print(std::basic_ostream<TChar, TCharTraits> & stream, const T& x) {
|
||||
return pretty_print(stream, x);
|
||||
}
|
||||
}
|
||||
|
||||
#endif // SOI_PRETTY
|
||||
|
|
|
|||
14
include/soi
14
include/soi
|
|
@ -8,7 +8,7 @@
|
|||
#include <fstream>
|
||||
#include "bits/soi-dbg.hpp"
|
||||
|
||||
namespace soi_h {
|
||||
namespace soi {
|
||||
|
||||
void check_for_eof() {
|
||||
if (!(std::cin >> std::ws).eof())
|
||||
|
|
@ -52,11 +52,11 @@ void initialize_debug() {
|
|||
std::atexit(noninteractive_check_eof) != 0) {
|
||||
std::cerr << "WARNING: soi.h -- registration of sanity check at exit failed\n";
|
||||
}
|
||||
soi_h::detail::dbg_init();
|
||||
soi::detail::dbg_init();
|
||||
}
|
||||
|
||||
struct soi_h_initializer {
|
||||
soi_h_initializer(bool release) {
|
||||
struct soi_initializer {
|
||||
soi_initializer(bool release) {
|
||||
if (release) {
|
||||
std::ios::sync_with_stdio(false);
|
||||
std::cin.tie(0);
|
||||
|
|
@ -67,12 +67,12 @@ struct soi_h_initializer {
|
|||
};
|
||||
|
||||
#ifdef SOI_RELEASE
|
||||
soi_h_initializer soi_h_initializer_{true};
|
||||
soi_initializer soi_initializer_{true};
|
||||
#else
|
||||
soi_h_initializer soi_h_initializer_{false};
|
||||
soi_initializer soi_initializer_{false};
|
||||
#endif
|
||||
|
||||
} // end namespace soi_h
|
||||
} // end namespace soi
|
||||
|
||||
#include "bits/soi-deprecate.hpp"
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue