coord/ops: ensure coord funcs only receive coords
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0cfcd7b439
commit
12b526dff7
196
coord/ops.hpp
196
coord/ops.hpp
@ -57,6 +57,10 @@ namespace util {
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template <> struct is_coord<vector> : std::true_type { };
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template <> struct is_coord<colour> : std::true_type { };
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template <template <size_t,typename> class K>
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constexpr bool
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is_coord_v = is_coord<K>::value;
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///////////////////////////////////////////////////////////////////////////
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// vector operators
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#define ELEMENT_OP(OP) \
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@ -66,17 +70,17 @@ namespace util {
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typename U, \
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template <size_t,typename> class A, \
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template <size_t,typename> class B, \
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typename = typename std::enable_if< \
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is_coord<A>::value && is_coord<B>::value, \
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typename = std::enable_if_t< \
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is_coord_v<A> && is_coord_v<B>, \
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void \
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>::type \
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> \
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> \
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constexpr \
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auto \
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operator OP (A<S,T> a, B<S,U> b) \
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{ \
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typename coord::traits<A,B>::template result< \
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S,typename std::common_type<T,U>::type \
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S,std::common_type_t<T,U> \
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> out {}; \
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for (size_t i = 0; i < S; ++i) \
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out[i] = a[i] OP b[i]; \
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@ -89,15 +93,14 @@ namespace util {
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typename U, \
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template <size_t,typename> class A, \
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template <size_t,typename> class B, \
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typename = typename std::enable_if< \
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is_coord<A>::value && \
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is_coord<B>::value && \
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typename = std::enable_if_t< \
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is_coord_v<A> && \
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is_coord_v<B> && \
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std::is_same< \
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typename std::common_type<T,U>::type, \
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T \
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std::common_type_t<T,U>, T \
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>::value, \
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void \
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>::type \
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> \
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> \
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auto& \
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operator PASTE(OP,=) (A<S,T>& a, B<S,U> b) \
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@ -122,15 +125,15 @@ namespace util {
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typename T, \
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typename U, \
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template <size_t,typename> class K, \
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typename = typename std::enable_if< \
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is_coord<K>::value,void \
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>::type \
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typename = std::enable_if_t< \
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is_coord_v<K>,void \
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> \
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> \
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constexpr \
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auto \
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operator OP (U u, K<S,T> k) \
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{ \
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K<S,typename std::common_type<T,U>::type> out{};\
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K<S,std::common_type_t<T,U>> out{}; \
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\
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for (size_t i = 0; i < S; ++i) \
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out[i] = u OP k[i]; \
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@ -142,15 +145,15 @@ namespace util {
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typename T, \
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typename U, \
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template <size_t,typename> class K, \
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typename = typename std::enable_if< \
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typename = std::enable_if_t< \
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is_coord<K>::value,void \
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>::type \
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> \
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> \
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constexpr \
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auto \
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operator OP (K<S,T> k, U u) \
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{ \
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K<S,typename std::common_type<T,U>::type> out{};\
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K<S,std::common_type_t<T,U>> out {}; \
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\
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for (size_t i = 0; i < S; ++i) \
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out[i] = k[i] OP u; \
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@ -177,17 +180,18 @@ namespace util {
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typename T, \
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typename U, \
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template <size_t,typename> class K, \
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typename = typename std::enable_if< \
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typename = std::enable_if_t< \
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is_coord<K>::value, \
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void \
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>::type \
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> \
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typename std::enable_if< \
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> \
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std::enable_if_t< \
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std::is_same< \
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T, \
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typename std::common_type<T,U>::type>::value, \
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std::common_type_t<T,U> \
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>::value, \
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K<S,T> \
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>::type& \
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>& \
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operator OP (K<S,T> &k, U u) \
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{ \
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for (size_t i = 0; i < S; ++i) \
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@ -211,7 +215,10 @@ namespace util {
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template < \
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size_t S, \
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typename T, \
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template <size_t,typename> class K \
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template <size_t,typename> class K, \
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typename = std::enable_if_t< \
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is_coord_v<K>, void \
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> \
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> \
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constexpr \
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auto \
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@ -240,17 +247,20 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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bool
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operator== (K<S,T> a, K<S,T> b)
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operator== (const K<S,T> a, const K<S,T> b)
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{
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bool (*predicate)(const T&, const T&) = almost_equal;
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return std::equal (std::begin (a),
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std::end (a),
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std::begin (b),
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return std::equal (std::cbegin (a),
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std::cend (a),
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std::cbegin (b),
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predicate);
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}
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@ -259,7 +269,10 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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bool
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@ -279,10 +292,10 @@ namespace util {
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typename U
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>
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constexpr
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vector<S,typename std::common_type<T,U>::type>
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vector<S,std::common_type_t<T,U>>
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operator- (point<S,T> a, point<S,U> b)
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{
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vector<S,typename std::common_type<T,U>::type> out {};
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vector<S,std::common_type_t<T,U>> out {};
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for (size_t i = 0; i < S; ++i)
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out[i] = a[i] - b[i];
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return out;
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@ -296,7 +309,7 @@ namespace util {
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typename U
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>
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constexpr
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vector<S,typename std::common_type<T,U>::type>
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vector<S,std::common_type_t<T,U>>
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operator- (U u, point<S,T> p)
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{
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return point<S,U> {u} - p;
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@ -322,13 +335,13 @@ namespace util {
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size_t S,
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typename T,
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template <size_t,typename> class A,
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template <size_t,typename> class B
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template <size_t,typename> class B,
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typename = std::enable_if_t<
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is_coord_v<A> && is_coord_v<B>, void
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>
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>
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constexpr
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typename std::enable_if<
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is_coord<A>::value && is_coord<B>::value,
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T
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>::type
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dot (A<S,T> a, B<S,T> b)
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{
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return dot<S,T> (a.data, b.data);
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@ -338,10 +351,13 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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typename std::enable_if<is_coord<K>::value,T>::type
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T
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dot (K<S,T> a, const T (&b)[S])
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{
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return dot<S,T> (a.data, b);
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@ -351,13 +367,13 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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typename std::enable_if<
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is_coord<K>::value,
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T
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>::type
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dot (const T (&a)[S], K<S,T> b)
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{
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return dot<S,T> (a, b.data);
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@ -368,7 +384,10 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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K<S,T>
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@ -383,7 +402,10 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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K<S,T>
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@ -402,7 +424,10 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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K<S,T>
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@ -420,7 +445,10 @@ namespace util {
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template <
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size_t S,
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typename T,
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template <size_t,typename> class K
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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K<S,T>
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@ -434,18 +462,36 @@ namespace util {
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///------------------------------------------------------------------------
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template <size_t S, typename T, template<size_t,typename> class K>
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template <
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size_t S,
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typename T,
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template<size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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T
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min (K<S,T> k)
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{ return *std::min_element (k.begin (), k.end ()); }
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min (const K<S,T> k)
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{
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return *std::min_element (std::cbegin (k), std::cend (k));
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}
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template <size_t S, typename T, template<size_t,typename> class K>
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template <
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size_t S,
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typename T,
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template<size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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T
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max (K<S,T> k)
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{ return *std::max_element (k.begin (), k.end ()); }
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max (const K<S,T> k)
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{
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return *std::max_element (std::cbegin (k), std::cend (k));
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}
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//-------------------------------------------------------------------------
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@ -455,7 +501,10 @@ namespace util {
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typename T, \
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typename U, \
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template <size_t,typename> class A, \
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template <size_t,typename> class B \
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template <size_t,typename> class B, \
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typename = std::enable_if_t< \
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is_coord_v<A> && is_coord_v<B>, void \
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> \
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> \
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constexpr \
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vector<S,bool> \
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@ -480,7 +529,10 @@ namespace util {
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size_t S, \
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typename T, \
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typename U, \
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template <size_t,typename> class K \
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template <size_t,typename> class K, \
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typename = std::enable_if_t< \
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is_coord_v<K>, void \
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> \
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> \
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constexpr \
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vector<S,bool> \
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@ -501,31 +553,51 @@ namespace util {
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//-------------------------------------------------------------------------
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template <size_t S, template <size_t,typename> class K>
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template <
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size_t S,
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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bool
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any (const K<S,bool> k)
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{
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return std::any_of (std::cbegin (k), std::cbegin (k), identity<bool>);
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return std::any_of (std::cbegin (k),
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std::cbegin (k),
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identity<bool>);
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}
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//-------------------------------------------------------------------------
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template <size_t S, template <size_t,typename> class K>
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template <
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size_t S,
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template <size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K>, void
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>
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>
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constexpr
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bool
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all (const K<S,bool> k)
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{
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return std::all_of (std::cbegin (k), std::cbegin (k), identity<bool>);
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return std::all_of (std::cbegin (k),
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std::cbegin (k),
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identity<bool>);
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}
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///////////////////////////////////////////////////////////////////////////
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template <size_t S, typename T, template<size_t,typename> class K>
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template <
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size_t S,
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typename T,
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template<size_t,typename> class K,
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typename = std::enable_if_t<
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is_coord_v<K> && std::is_floating_point<T>::value, void
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>
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>
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constexpr
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typename std::enable_if<
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std::is_floating_point<T>::value,
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K<S,T>
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>::type
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floor (const K<S,T> k)
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{
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T (*floor_func)(T) = std::floor;
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