PIVector: map, reduce

rename arguments in uniform style

libs/main/containers/pideque.h

@@ -174,6 +174,7 @@ public:
 	inline size_t capacity() const {return pid_rsize;}
 	inline size_t _start() const {return pid_start;}
 	inline bool isEmpty() const {return (pid_size == 0);}
+	inline bool isNotEmpty() const {return (pid_size > 0);}
 
 	inline T & operator [](size_t index) {return pid_data[pid_start + index];}
 	inline const T & operator [](size_t index) const {return pid_data[pid_start + index];}
@@ -184,34 +185,41 @@ public:
 	inline const T & front() const {return pid_data[pid_start];}
 	inline bool operator ==(const PIDeque<T> & t) const {
 		if (pid_size != t.pid_size) return false;
-		for (size_t i = 0; i < pid_size; ++i)
+		for (size_t i = 0; i < pid_size; ++i) {
-			if (t[i] != (*this)[i])
+			if (t[i] != (*this)[i]) {
 				return false;
+			}
+		}
 		return true;
 	}
 	inline bool operator !=(const PIDeque<T> & t) const {return !(*this == t);}
 	inline bool operator <(const PIDeque<T> & t) const {
 		if (pid_size != t.pid_size) return pid_size < t.pid_size;
-		for (size_t i = 0; i < pid_size; ++i)
+		for (size_t i = 0; i < pid_size; ++i) {
 			if ((*this)[i] != t[i]) return (*this)[i] < t[i];
+		}
 		return false;
 	}
 	inline bool operator >(const PIDeque<T> & t) const {
 		if (pid_size != t.pid_size) return pid_size > t.pid_size;
-		for (size_t i = 0; i < pid_size; ++i)
+		for (size_t i = 0; i < pid_size; ++i) {
 			if ((*this)[i] != t[i]) return (*this)[i] > t[i];
+		}
 		return false;
 	}
 	inline bool contains(const T & v) const {
-		for (size_t i = pid_start; i < pid_start + pid_size; ++i)
+		for (size_t i = pid_start; i < pid_start + pid_size; ++i) {
-			if (v == pid_data[i])
+			if (v == pid_data[i]) {
 				return true;
+			}
+		}
 		return false;
 	}
 	inline int etries(const T & v) const {
 		int ec = 0;
-		for (size_t i = pid_start; i < pid_start + pid_size; ++i)
+		for (size_t i = pid_start; i < pid_start + pid_size; ++i) {
 			if (v == pid_data[i]) ++ec;
+		}
 		return ec;
 	}
 	inline ssize_t indexOf(const T & v) const {
@@ -221,9 +229,11 @@ public:
 		return -1;
 	}
 	inline ssize_t lastIndexOf(const T & v) const {
-		for (ssize_t i = pid_start + (ssize_t)pid_size - 1; i >= pid_start; --i)
+		for (ssize_t i = pid_start + (ssize_t)pid_size - 1; i >= pid_start; --i) {
-			if (v == pid_data[i])
+			if (v == pid_data[i]) {
 				return i - pid_start;
+			}
+		}
 		return -1;
 	}
 
@@ -250,15 +260,17 @@ public:
 	inline PIDeque<T> & fill(const T & f = T()) {
 		deleteT(pid_data + pid_start, pid_size);
 		PIINTROSPECTION_CONTAINER_USED(T, pid_size)
-		for (size_t i = pid_start; i < pid_start + pid_size; ++i)
+		for (size_t i = pid_start; i < pid_start + pid_size; ++i) {
 			elementNew(pid_data + i, f);
+		}
 		return *this;
 	}
 	inline PIDeque<T> & fill(std::function<T(size_t)> f) {
 		deleteT(pid_data + pid_start, pid_size);
 		PIINTROSPECTION_CONTAINER_USED(T, pid_size)
-		for (size_t i = pid_start; i < pid_start + pid_size; ++i)
+		for (size_t i = pid_start; i < pid_start + pid_size; ++i) {
 			elementNew(pid_data + i, f(i));
+		}
 		return *this;
 	}
 	inline PIDeque<T> & assign(const T & f = T()) {return fill(f);}
@@ -281,32 +293,36 @@ public:
 		if (new_size < pid_size) {
 			deleteT(&(pid_data[new_size + pid_start]), pid_size - new_size);
 			pid_size = new_size;
-			if (new_size == 0)
+			if (new_size == 0) {
 				pid_start = (pid_rsize - pid_size) / 2;
 			}
+		}
 		if (new_size > pid_size) {
 			size_t os = pid_size;
 			alloc(new_size, true);
 			PIINTROSPECTION_CONTAINER_USED(T, (new_size-os))
-			for (size_t i = os + pid_start; i < new_size + pid_start; ++i)
+			for (size_t i = os + pid_start; i < new_size + pid_start; ++i) {
 				elementNew(pid_data + i, f);
 			}
+		}
 		return *this;
 	}
 	inline PIDeque<T> & resize(size_t new_size, std::function<T(size_t)> f) {
 		if (new_size < pid_size) {
 			deleteT(&(pid_data[new_size + pid_start]), pid_size - new_size);
 			pid_size = new_size;
-			if (new_size == 0)
+			if (new_size == 0) {
 				pid_start = (pid_rsize - pid_size) / 2;
 			}
+		}
 		if (new_size > pid_size) {
 			size_t os = pid_size;
 			alloc(new_size, true);
 			PIINTROSPECTION_CONTAINER_USED(T, (new_size-os))
-			for (size_t i = os + pid_start; i < new_size + pid_start; ++i)
+			for (size_t i = os + pid_start; i < new_size + pid_start; ++i) {
 				elementNew(pid_data + i, f(i));
 			}
+		}
 		return *this;
 	}
 
@@ -344,9 +360,10 @@ public:
 			}
 		} else {
 			alloc(pid_size + 1, false, -1);
-			if (index > 0)
+			if (index > 0) {
 				memmove((void*)(&(pid_data[pid_start])), (const void*)(&(pid_data[pid_start + 1])), index * sizeof(T));
 			}
+		}
 		elementNew(pid_data + pid_start + index, v);
 		return *this;
 	}
@@ -362,9 +379,10 @@ public:
 			}
 		} else {
 			alloc(pid_size + 1, false, -1);
-			if (index > 0)
+			if (index > 0) {
 				memmove((void*)(&(pid_data[pid_start])), (const void*)(&(pid_data[pid_start + 1])), index * sizeof(T));
 			}
+		}
 		elementNew(pid_data + pid_start + index, std::move(v));
 		return *this;
 	}
@@ -375,13 +393,15 @@ public:
 		if (dir) {
 			ssize_t os = pid_size - index;
 			alloc(pid_size + other.pid_size, true);
-			if (os > 0)
+			if (os > 0) {
 				memmove((void*)(&(pid_data[index + pid_start + other.pid_size])), (const void*)(&(pid_data[index + pid_start])), os * sizeof(T));
+			}
 		} else {
 			alloc(pid_size + other.pid_size, false, -other.pid_size);
-			if (index > 0)
+			if (index > 0) {
 				memmove((void*)(&(pid_data[pid_start])), (const void*)(&(pid_data[pid_start + other.pid_size])), index * sizeof(T));
 			}
+		}
 		newT(pid_data + pid_start + index, other.pid_data + other.pid_start, other.pid_size);
 		return *this;
 	}
@@ -395,9 +415,13 @@ public:
 		size_t os = pid_size - index - count;
 		deleteT(&(pid_data[index + pid_start]), count);
 		if (os <= index) {
-			if (os > 0) memmove((void*)(&(pid_data[index + pid_start])), (const void*)(&(pid_data[index + pid_start + count])), os * sizeof(T));
+			if (os > 0) {
+				memmove((void*)(&(pid_data[index + pid_start])), (const void*)(&(pid_data[index + pid_start + count])), os * sizeof(T));
+			}
 		} else {
-			if (index > 0) memmove((void*)(&(pid_data[pid_start + count])), (const void*)(&(pid_data[pid_start])), index * sizeof(T));
+			if (index > 0) {
+				memmove((void*)(&(pid_data[pid_start + count])), (const void*)(&(pid_data[pid_start])), index * sizeof(T));
+			}
 			pid_start += count;
 		}
 		pid_size -= count;
@@ -426,19 +450,21 @@ public:
 	}
 
 	inline PIDeque<T> & removeOne(const T & v) {
-		for (size_t i = 0; i < pid_size; ++i)
+		for (size_t i = 0; i < pid_size; ++i) {
 			if (pid_data[i + pid_start] == v) {
 				remove(i);
 				return *this;
 			}
+		}
 		return *this;
 	}
 	inline PIDeque<T> & removeAll(const T & v) {
-		for (ssize_t i = 0; i < ssize_t(pid_size); ++i)
+		for (ssize_t i = 0; i < ssize_t(pid_size); ++i) {
 			if (pid_data[i + pid_start] == v) {
 				remove(i);
 				--i;
 			}
+		}
 		return *this;
 	}
 
@@ -481,20 +507,23 @@ public:
 	template <typename ST>
 	PIDeque<ST> toType() const {
 		PIDeque<ST> ret(pid_size);
-		for (uint i = 0; i < pid_size; ++i)
+		for (uint i = 0; i < pid_size; ++i) {
 			ret[i] = ST(pid_data[i + pid_start]);
+		}
 		return ret;
 	}
 
 	const PIDeque<T> & forEach(std::function<void(const T &)> f) const {
-		for (uint i = 0; i < pid_size; ++i)
+		for (uint i = 0; i < pid_size; ++i) {
 			f(pid_data[i + pid_start]);
+		}
 		return *this;
 	}
 	PIDeque<T> copyForEach(std::function<T(const T &)> f) const {
 		PIDeque<T> ret; ret.reserve(pid_size);
-		for (uint i = 0; i < pid_size; ++i)
+		for (uint i = 0; i < pid_size; ++i) {
 			ret << f(pid_data[i + pid_start]);
+		}
 		return ret;
 	}
 	PIDeque<T> & forEachInplace(std::function<T(const T &)> f) {
@@ -505,8 +534,9 @@ public:
 	template <typename ST>
 	PIDeque<ST> toType(std::function<ST(const T &)> f) const {
 		PIDeque<ST> ret; ret.reserve(pid_size);
-		for (uint i = 0; i < pid_size; ++i)
+		for (uint i = 0; i < pid_size; ++i) {
 			ret << f(pid_data[i + pid_start]);
+		}
 		return ret;
 	}
 
@@ -516,16 +546,18 @@ public:
 		assert(rows*cols == pid_size);
 		ret.resize(rows);
 		if (order == byRow) {
-			for (size_t r = 0; r < rows; r++)
+			for (size_t r = 0; r < rows; r++) {
 				ret[r] = PIDeque<T>(&(pid_data[r*cols]), cols);
 			}
+		}
 		if (order == byColumn) {
 			for (size_t r = 0; r < rows; r++) {
 				ret[r].resize(cols);
-				for (size_t c = 0; c < cols; c++)
+				for (size_t c = 0; c < cols; c++) {
 					ret[r][c] = pid_data[c*rows + r];
 				}
 			}
+		}
 		return ret;
 	}
 
@@ -539,14 +571,17 @@ public:
 		size_t cols = at(0).size();
 		ret.reserve(rows * cols);
 		if (order == byRow) {
-			for (size_t r = 0; r < rows; r++)
+			for (size_t r = 0; r < rows; r++) {
 				ret.append(at(r));
 			}
+		}
 		if (order == byColumn) {
-			for (size_t c = 0; c < cols; c++)
+			for (size_t c = 0; c < cols; c++) {
-				for (size_t r = 0; r < rows; r++)
+				for (size_t r = 0; r < rows; r++) {
 					ret << at(r)[c];
 				}
+			}
+		}
 		ret.resize(rows * cols);
 		return ret;
 	}
@@ -555,11 +590,13 @@ private:
 	inline void _reset() {pid_size = pid_rsize = pid_start = 0; pid_data = 0;}
 	inline size_t asize(ssize_t s) {
 		if (s <= 0) return 0;
-		if (pid_rsize + pid_rsize >= size_t(s) && pid_rsize < size_t(s))
+		if (pid_rsize + pid_rsize >= size_t(s) && pid_rsize < size_t(s)) {
 			return pid_rsize + pid_rsize;
+		}
 		ssize_t t = 0, s_ = s - 1;
-		while (s_ >> t)
+		while (s_ >> t) {
 			++t;
+		}
 		return (1 << t);
 	}
 	template<typename T1 = T, typename std::enable_if<
@@ -583,10 +620,11 @@ private:
 	inline void deleteT(T * d, size_t sz) {
 		PIINTROSPECTION_CONTAINER_UNUSED(T, sz)
 		if ((uchar*)d != 0) {
-			for (size_t i = 0; i < sz; ++i)
+			for (size_t i = 0; i < sz; ++i) {
 				elementDelete(d[i]);
 			}
 		}
+	}
 	template<typename T1 = T, typename std::enable_if<
 				 std::is_trivially_copyable<T1>::value
 				 , int>::type = 0>
@@ -658,10 +696,11 @@ private:
 			}
 		} else {
 			size_t as;
-			if (pid_start + start_offset < 0)
+			if (pid_start + start_offset < 0) {
 				as = asize(pid_rsize - start_offset);
-			else as = pid_rsize;
+			} else {
-
+				as = pid_rsize;
+			}
 			if (as > pid_rsize) {
 				T * td = (T*)(malloc(as * sizeof(T)));
 				ssize_t ns = pid_start + as - pid_rsize;
@@ -688,7 +727,15 @@ private:
 
 #ifdef PIP_STD_IOSTREAM
 template<typename T>
-inline std::ostream & operator <<(std::ostream & s, const PIDeque<T> & v) {s << "{"; for (size_t i = 0; i < v.size(); ++i) {s << v[i]; if (i < v.size() - 1) s << ", ";} s << "}"; return s;}
+inline std::ostream & operator <<(std::ostream & s, const PIDeque<T> & v) {
+	s << "{";
+	for (size_t i = 0; i < v.size(); ++i) {
+		s << v[i];
+		if (i < v.size() - 1) s << ", ";
+	}
+	s << "}";
+	return s;
+}
 #endif
 
 template<typename T>
@@ -698,8 +745,7 @@ inline PICout operator <<(PICout s, const PIDeque<T> & v) {
 	s << "{";
 	for (size_t i = 0; i < v.size(); ++i) {
 		s << v[i];
-		if (i < v.size() - 1)
+		if (i < v.size() - 1) s << ", ";
-			s << ", ";
 	}
 	s << "}";
 	s.restoreControl();

libs/main/containers/pivector.h

@@ -39,10 +39,10 @@ public:
 		alloc(size);
 		newT(piv_data, data, piv_size);
 	}
-	inline PIVector(const PIVector<T> & other): piv_data(0), piv_size(0), piv_rsize(0) {
+	inline PIVector(const PIVector<T> & v): piv_data(0), piv_size(0), piv_rsize(0) {
 		PIINTROSPECTION_CONTAINER_NEW(T, sizeof(T))
-		alloc(other.piv_size);
+		alloc(v.piv_size);
-		newT(piv_data, other.piv_data, piv_size);
+		newT(piv_data, v.piv_data, piv_size);
 	}
 	inline PIVector(std::initializer_list<T> init_list): piv_data(0), piv_size(0), piv_rsize(0) {
 		PIINTROSPECTION_CONTAINER_NEW(T, sizeof(T))
@@ -53,13 +53,13 @@ public:
 		PIINTROSPECTION_CONTAINER_NEW(T, sizeof(T))
 		resize(piv_size, f);
 	}
-	inline PIVector(size_t piv_size, std::function<T(size_t)> f): piv_data(0), piv_size(0), piv_rsize(0) {
+	inline PIVector(size_t piv_size, std::function<T(size_t i)> f): piv_data(0), piv_size(0), piv_rsize(0) {
 		PIINTROSPECTION_CONTAINER_NEW(T, sizeof(T))
 		resize(piv_size, f);
 	}
-	inline PIVector(PIVector<T> && other): piv_data(other.piv_data), piv_size(other.piv_size), piv_rsize(other.piv_rsize) {
+	inline PIVector(PIVector<T> && v): piv_data(v.piv_data), piv_size(v.piv_size), piv_rsize(v.piv_rsize) {
 		PIINTROSPECTION_CONTAINER_NEW(T, sizeof(T))
-		other._reset();
+		v._reset();
 	}
 	inline virtual ~PIVector() {
 		PIINTROSPECTION_CONTAINER_DELETE(T)
@@ -69,17 +69,17 @@ public:
 		_reset();
 	}
 
-	inline PIVector<T> & operator =(const PIVector<T> & other) {
+	inline PIVector<T> & operator =(const PIVector<T> & v) {
-		if (this == &other) return *this;
+		if (this == &v) return *this;
 		clear();
 		deleteT(piv_data, piv_size);
-		alloc(other.piv_size);
+		alloc(v.piv_size);
-		newT(piv_data, other.piv_data, piv_size);
+		newT(piv_data, v.piv_data, piv_size);
 		return *this;
 	}
 
-	inline PIVector<T> & operator =(PIVector<T> && other) {
+	inline PIVector<T> & operator =(PIVector<T> && v) {
-		swap(other);
+		swap(v);
 		return *this;
 	}
 
@@ -174,6 +174,19 @@ public:
 	inline size_t length() const {return piv_size;}
 	inline size_t capacity() const {return piv_rsize;}
 	inline bool isEmpty() const {return (piv_size == 0);}
+	inline bool isNotEmpty() const {return (piv_size > 0);}
+	inline bool any(std::function<bool(const T &)> test) const {
+		for (uint i = 0; i < piv_size; ++i) {
+			if (test(piv_data[i])) return true;
+		}
+		return false;
+	}
+	inline bool every(std::function<bool(const T &)> test) const {
+		for (uint i = 0; i < piv_size; ++i) {
+			if (!test(piv_data[i])) return false;
+		}
+		return true;
+	}
 
 	inline T & operator [](size_t index) {return piv_data[index];}
 	inline const T & operator [](size_t index) const {return piv_data[index];}
@@ -183,48 +196,87 @@ public:
 	inline T & front() {return piv_data[0];}
 	inline const T & front() const {return piv_data[0];}
 	inline bool operator ==(const PIVector<T> & t) const {
-		if (piv_size != t.piv_size)
+		if (piv_size != t.piv_size) {
 			return false;
-		for (size_t i = 0; i < piv_size; ++i)
+		}
-			if (t[i] != piv_data[i])
+		for (size_t i = 0; i < piv_size; ++i) {
+			if (t[i] != piv_data[i]) {
 				return false;
+			}
+		}
 		return true;
 	}
 	inline bool operator !=(const PIVector<T> & t) const {return !(*this == t);}
 	inline bool operator <(const PIVector<T> & t) const {
 		if (piv_size != t.piv_size) return piv_size < t.piv_size;
-		for (size_t i = 0; i < piv_size; ++i)
+		for (size_t i = 0; i < piv_size; ++i) {
 			if ((*this)[i] != t[i]) return (*this)[i] < t[i];
+		}
 		return false;
 	}
 	inline bool operator >(const PIVector<T> & t) const {
 		if (piv_size != t.piv_size) return piv_size > t.piv_size;
-		for (size_t i = 0; i < piv_size; ++i)
+		for (size_t i = 0; i < piv_size; ++i) {
 			if ((*this)[i] != t[i]) return (*this)[i] > t[i];
+		}
 		return false;
 	}
-	inline bool contains(const T & v) const {
+	inline bool contains(const T & e) const {
-		for (size_t i = 0; i < piv_size; ++i)
+		for (size_t i = 0; i < piv_size; ++i) {
-			if (v == piv_data[i])
+			if (e == piv_data[i]) {
 				return true;
+			}
+		}
 		return false;
 	}
-	inline int etries(const T & v) const {
+	inline int etries(const T & e, size_t start = 0) const {
 		int ec = 0;
-		for (size_t i = 0; i < piv_size; ++i)
+		for (size_t i = start; i < piv_size; ++i) {
-			if (v == piv_data[i]) ++ec;
+			if (e == piv_data[i]) ++ec;
+		}
 		return ec;
 	}
-	inline ssize_t indexOf(const T & v) const {
+	inline int etries(std::function<bool(const T & e)> test, size_t start = 0) const {
-		for (size_t i = 0; i < piv_size; ++i)
+		int ec = 0;
-			if (v == piv_data[i])
+		for (size_t i = start; i < piv_size; ++i) {
+			if (test(piv_data[i])) ++ec;
+		}
+		return ec;
+	}
+	inline ssize_t indexOf(const T & e, size_t start = 0) const {
+		for (size_t i = start; i < piv_size; ++i) {
+			if (e == piv_data[i]) {
 				return i;
+			}
+		}
 		return -1;
 	}
-	inline ssize_t lastIndexOf(const T & v) const {
+	inline ssize_t indexWhere(std::function<bool(const T & e)> test, size_t start = 0) const {
-		for (ssize_t i = piv_size - 1; i >= 0; --i)
+		for (size_t i = start; i < piv_size; ++i) {
-			if (v == piv_data[i])
+			if (test(piv_data[i])) {
 				return i;
+			}
+		}
+		return -1;
+	}
+	inline ssize_t lastIndexOf(const T & e, ssize_t start = -1) const {
+		if (start < 0) start = piv_size - 1;
+		else start = piMin<ssize_t>(piv_size - 1, start);
+		for (ssize_t i = start; i >= 0; --i) {
+			if (e == piv_data[i]) {
+				return i;
+			}
+		}
+		return -1;
+	}
+	inline ssize_t lastIndexWhere(std::function<bool(const T & e)> test, ssize_t start = -1) const {
+		if (start < 0) start = piv_size - 1;
+		else start = piMin<ssize_t>(piv_size - 1, start);
+		for (ssize_t i = start; i >= 0; --i) {
+			if (test(piv_data[i])) {
+				return i;
+			}
+		}
 		return -1;
 	}
 
@@ -250,15 +302,17 @@ public:
 	inline PIVector<T> & fill(const T & f = T()) {
 		deleteT(piv_data, piv_size);
 		PIINTROSPECTION_CONTAINER_USED(T, piv_size)
-		for (size_t i = 0; i < piv_size; ++i)
+		for (size_t i = 0; i < piv_size; ++i) {
 			elementNew(piv_data + i, f);
+		}
 		return *this;
 	}
-	inline PIVector<T> & fill(std::function<T(size_t)> f) {
+	inline PIVector<T> & fill(std::function<T(size_t i)> f) {
 		deleteT(piv_data, piv_size);
 		PIINTROSPECTION_CONTAINER_USED(T, piv_size)
-		for (size_t i = 0; i < piv_size; ++i)
+		for (size_t i = 0; i < piv_size; ++i) {
 			elementNew(piv_data + i, f(i));
+		}
 		return *this;
 	}
 	inline PIVector<T> & assign(const T & f = T()) {return fill(f);}
@@ -287,12 +341,13 @@ public:
 			size_t os = piv_size;
 			alloc(new_size);
 			PIINTROSPECTION_CONTAINER_USED(T, (new_size-os))
-			for (size_t i = os; i < new_size; ++i)
+			for (size_t i = os; i < new_size; ++i) {
 				elementNew(piv_data + i, f);
 			}
+		}
 		return *this;
 	}
-	inline PIVector<T> & resize(size_t new_size, std::function<T(size_t)> f) {
+	inline PIVector<T> & resize(size_t new_size, std::function<T(size_t i)> f) {
 		if (new_size < piv_size) {
 			T * de = &(piv_data[new_size]);
 			deleteT(de, piv_size - new_size);
@@ -302,9 +357,10 @@ public:
 			size_t os = piv_size;
 			alloc(new_size);
 			PIINTROSPECTION_CONTAINER_USED(T, (new_size-os))
-			for (size_t i = os; i < new_size; ++i)
+			for (size_t i = os; i < new_size; ++i) {
 				elementNew(piv_data + i, f(i));
 			}
+		}
 		return *this;
 	}
 	template<typename T1 = T, typename std::enable_if<
@@ -332,34 +388,35 @@ public:
 		return *this;
 	}
 
-	inline PIVector<T> & insert(size_t index, const T & v = T()) {
+	inline PIVector<T> & insert(size_t index, const T & e = T()) {
 		alloc(piv_size + 1);
 		if (index < piv_size - 1) {
 			size_t os = piv_size - index - 1;
 			memmove((void*)(&(piv_data[index + 1])), (const void*)(&(piv_data[index])), os * sizeof(T));
 		}
 		PIINTROSPECTION_CONTAINER_USED(T, 1)
-		elementNew(piv_data + index, v);
+		elementNew(piv_data + index, e);
 		return *this;
 	}
-	inline PIVector<T> & insert(size_t index, T && v) {
+	inline PIVector<T> & insert(size_t index, T && e) {
 		alloc(piv_size + 1);
 		if (index < piv_size - 1) {
 			size_t os = piv_size - index - 1;
 			memmove((void*)(&(piv_data[index + 1])), (const void*)(&(piv_data[index])), os * sizeof(T));
 		}
 		PIINTROSPECTION_CONTAINER_USED(T, 1)
-		elementNew(piv_data + index, std::move(v));
+		elementNew(piv_data + index, std::move(e));
 		return *this;
 	}
-	inline PIVector<T> & insert(size_t index, const PIVector<T> & other) {
+	inline PIVector<T> & insert(size_t index, const PIVector<T> & v) {
-		if (other.isEmpty()) return *this;
+		if (v.isEmpty()) return *this;
-		assert(&other != this);
+		assert(&v != this);
 		ssize_t os = piv_size - index;
-		alloc(piv_size + other.piv_size);
+		alloc(piv_size + v.piv_size);
-		if (os > 0)
+		if (os > 0) {
-			memmove((void*)(&(piv_data[index + other.piv_size])), (const void*)(&(piv_data[index])), os * sizeof(T));
+			memmove((void*)(&(piv_data[index + v.piv_size])), (const void*)(&(piv_data[index])), os * sizeof(T));
-		newT(piv_data + index, other.piv_data, other.piv_size);
+		}
+		newT(piv_data + index, v.piv_data, v.piv_size);
 		return *this;
 	}
 
@@ -376,10 +433,10 @@ public:
 		return *this;
 	}
 
-	inline void swap(PIVector<T> & other) {
+	inline void swap(PIVector<T> & v) {
-		piSwap<T*>(piv_data, other.piv_data);
+		piSwap<T*>(piv_data, v.piv_data);
-		piSwap<size_t>(piv_size, other.piv_size);
+		piSwap<size_t>(piv_size, v.piv_size);
-		piSwap<size_t>(piv_rsize, other.piv_rsize);
+		piSwap<size_t>(piv_rsize, v.piv_rsize);
 	}
 
 	typedef int (*CompareFunc)(const T * , const T * );
@@ -396,62 +453,65 @@ public:
 		return *this;
 	}
 
-	inline PIVector<T> & removeOne(const T & v) {
+	inline PIVector<T> & removeOne(const T & e) {
-		for (size_t i = 0; i < piv_size; ++i)
+		for (size_t i = 0; i < piv_size; ++i) {
-			if (piv_data[i] == v) {
+			if (piv_data[i] == e) {
 				remove(i);
 				return *this;
 			}
+		}
 		return *this;
 	}
-	inline PIVector<T> & removeAll(const T & v) {
+
-		for (ssize_t i = 0; i < ssize_t(piv_size); ++i)
+	inline PIVector<T> & removeAll(const T & e) {
-			if (piv_data[i] == v) {
+		for (ssize_t i = 0; i < ssize_t(piv_size); ++i) {
+			if (piv_data[i] == e) {
 				remove(i);
 				--i;
 			}
+		}
 		return *this;
 	}
 
-	inline PIVector<T> & push_back(const T & v) {
+	inline PIVector<T> & push_back(const T & e) {
 		alloc(piv_size + 1);
 		PIINTROSPECTION_CONTAINER_USED(T, 1);
-		elementNew(piv_data + piv_size - 1, v);
+		elementNew(piv_data + piv_size - 1, e);
 		return *this;
 	}
-	inline PIVector<T> & push_back(T && v) {
+
+	inline PIVector<T> & push_back(T && e) {
 		alloc(piv_size + 1);
 		PIINTROSPECTION_CONTAINER_USED(T, 1);
-		elementNew(piv_data + piv_size - 1, std::move(v));
+		elementNew(piv_data + piv_size - 1, std::move(e));
 		return *this;
 	}
-	inline PIVector<T> & append(const T & v) {return push_back(v);}
+
-	inline PIVector<T> & append(T && v) {return push_back(std::move(v));}
+	inline PIVector<T> & append(const T & e) {return push_back(e);}
-	inline PIVector<T> & append(const PIVector<T> & other) {
+	inline PIVector<T> & append(T && e) {return push_back(std::move(e));}
-		assert(&other != this);
+	inline PIVector<T> & append(const PIVector<T> & v) {
+		assert(&v != this);
 		size_t ps = piv_size;
-		alloc(piv_size + other.piv_size);
+		alloc(piv_size + v.piv_size);
-		newT(piv_data + ps, other.piv_data, other.piv_size);
+		newT(piv_data + ps, v.piv_data, v.piv_size);
 		return *this;
 	}
-	inline PIVector<T> & operator <<(const T & v) {return push_back(v);}
+	inline PIVector<T> & operator <<(const T & e) {return push_back(e);}
-	inline PIVector<T> & operator <<(T && v) {return push_back(std::move(v));}
+	inline PIVector<T> & operator <<(T && e) {return push_back(std::move(e));}
-	inline PIVector<T> & operator <<(const PIVector<T> & other) {return append(other);}
+	inline PIVector<T> & operator <<(const PIVector<T> & v) {return append(v);}
 
-	inline PIVector<T> & push_front(const T & v) {insert(0, v); return *this;}
+	inline PIVector<T> & push_front(const T & e) {insert(0, e); return *this;}
-	inline PIVector<T> & push_front(T && v) {insert(0, std::move(v)); return *this;}
+	inline PIVector<T> & push_front(T && e) {insert(0, std::move(e)); return *this;}
-	inline PIVector<T> & prepend(const T & v) {return push_front(v);}
+	inline PIVector<T> & prepend(const T & e) {return push_front(e);}
-	inline PIVector<T> & prepend(T && v) {return push_front(std::move(v));}
+	inline PIVector<T> & prepend(T && e) {return push_front(std::move(e));}
 
 	inline PIVector<T> & pop_back() {
-		if (piv_size == 0)
+		if (piv_size == 0) return *this;
-			return *this;
 		resize(piv_size - 1);
 		return *this;
 	}
 	inline PIVector<T> & pop_front() {
-		if (piv_size == 0)
+		if (piv_size == 0) return *this;
-			return *this;
 		remove(0);
 		return *this;
 	}
@@ -462,32 +522,49 @@ public:
 	template <typename ST>
 	PIVector<ST> toType() const {
 		PIVector<ST> ret(piv_size);
-		for (uint i = 0; i < piv_size; ++i)
+		for (uint i = 0; i < piv_size; ++i) {
 			ret[i] = ST(piv_data[i]);
+		}
 		return ret;
 	}
 
-	const PIVector<T> & forEach(std::function<void(const T &)> f) const {
+	const PIVector<T> & forEach(std::function<void(const T & e)> f) const {
-		for (uint i = 0; i < piv_size; ++i)
+		for (uint i = 0; i < piv_size; ++i) {
 			f(piv_data[i]);
+		}
 		return *this;
 	}
-	PIVector<T> copyForEach(std::function<T(const T &)> f) const {
+	PIVector<T> copyForEach(std::function<T(const T & e)> f) const {
 		PIVector<T> ret; ret.reserve(piv_size);
-		for (uint i = 0; i < piv_size; ++i)
+		for (uint i = 0; i < piv_size; ++i) {
 			ret << f(piv_data[i]);
+		}
 		return ret;
 	}
-	PIVector<T> & forEachInplace(std::function<T(const T &)> f) {
+	PIVector<T> & forEachInplace(std::function<T(const T & e)> f) {
-		for (uint i = 0; i < piv_size; ++i)
+		for (uint i = 0; i < piv_size; ++i) {
 			piv_data[i] = f(piv_data[i]);
+		}
 		return *this;
 	}
+
 	template <typename ST>
-	PIVector<ST> toType(std::function<ST(const T &)> f) const {
+	PIVector<ST> map(std::function<ST(const T & e)> f) const {
 		PIVector<ST> ret; ret.reserve(piv_size);
-		for (uint i = 0; i < piv_size; ++i)
+		for (uint i = 0; i < piv_size; ++i) {
 			ret << f(piv_data[i]);
+		}
+		return ret;
+	}
+	template <typename ST>
+	PIVector<ST> toType(std::function<ST(const T & e)> f) const {return map(f);}
+
+	template <typename ST>
+	ST reduce(std::function<ST(const T & e, const ST & acc)> f, const ST & initial = ST()) const {
+		ST ret(initial);
+		for (uint i = 0; i < piv_size; ++i) {
+			ret = f(piv_data[i], ret);
+		}
 		return ret;
 	}
 
@@ -497,16 +574,18 @@ public:
 		assert(rows*cols == piv_size);
 		ret.resize(rows);
 		if (order == byRow) {
-			for (size_t r = 0; r < rows; r++)
+			for (size_t r = 0; r < rows; r++) {
 				ret[r] = PIVector<T>(&(piv_data[r*cols]), cols);
 			}
+		}
 		if (order == byColumn) {
 			for (size_t r = 0; r < rows; r++) {
 				ret[r].resize(cols);
-				for (size_t c = 0; c < cols; c++)
+				for (size_t c = 0; c < cols; c++) {
 					ret[r][c] = piv_data[c*rows + r];
 				}
 			}
+		}
 		return ret;
 	}
 
@@ -520,14 +599,17 @@ public:
 		size_t cols = at(0).size();
 		ret.reserve(rows * cols);
 		if (order == byRow) {
-			for (size_t r = 0; r < rows; r++)
+			for (size_t r = 0; r < rows; r++) {
 				ret.append(at(r));
 			}
+		}
 		if (order == byColumn) {
-			for (size_t c = 0; c < cols; c++)
+			for (size_t c = 0; c < cols; c++) {
-				for (size_t r = 0; r < rows; r++)
+				for (size_t r = 0; r < rows; r++) {
 					ret << at(r)[c];
 				}
+			}
+		}
 		ret.resize(rows * cols);
 		return ret;
 	}
@@ -536,8 +618,9 @@ private:
 	inline void _reset() {piv_size = piv_rsize = 0; piv_data = 0;}
 	inline size_t asize(size_t s) {
 		if (s == 0) return 0;
-		if (piv_rsize + piv_rsize >= s && piv_rsize < s)
+		if (piv_rsize + piv_rsize >= s && piv_rsize < s) {
 			return piv_rsize + piv_rsize;
+		}
 		ssize_t t = 0, s_ = s - 1;
 		while (s_ >> t) ++t;
 		return (1 << t);
@@ -563,10 +646,11 @@ private:
 	inline void deleteT(T * d, size_t sz) {
 		PIINTROSPECTION_CONTAINER_UNUSED(T, sz)
 		if ((uchar*)d != 0) {
-			for (size_t i = 0; i < sz; ++i)
+			for (size_t i = 0; i < sz; ++i) {
 				elementDelete(d[i]);
 			}
 		}
+	}
 	template<typename T1 = T, typename std::enable_if<
 				 std::is_trivially_copyable<T1>::value
 				 , int>::type = 0>
@@ -624,7 +708,15 @@ private:
 
 #ifdef PIP_STD_IOSTREAM
 template<typename T>
-inline std::ostream & operator <<(std::ostream & s, const PIVector<T> & v) {s << "{"; for (size_t i = 0; i < v.size(); ++i) {s << v[i]; if (i < v.size() - 1) s << ", ";} s << "}"; return s;}
+inline std::ostream & operator <<(std::ostream & s, const PIVector<T> & v) {
+	s << "{";
+	for (size_t i = 0; i < v.size(); ++i) {
+		s << v[i];
+		if (i < v.size() - 1) s << ", ";
+	}
+	s << "}";
+	return s;
+}
 #endif
 
 template<typename T>
@@ -634,9 +726,10 @@ inline PICout operator <<(PICout s, const PIVector<T> & v) {
 	s << "{";
 	for (size_t i = 0; i < v.size(); ++i) {
 		s << v[i];
-		if (i < v.size() - 1)
+		if (i < v.size() - 1) {
 			s << ", ";
 		}
+	}
 	s << "}";
 	s.restoreControl();
 	return s;

main.cpp

@@ -2,6 +2,22 @@
 
 
 int main(int argc, char * argv[]) {
+
+	PIVector<int> x(20, [](int i) {return i;});
+	piCout << x;
+	piCout << x.any([](int v) {return v == 10;});
+	piCout << x.every([](int v) {return v > 0;});
+	piCout << x.etries([](int v) {return v % 5 == 0;});
+	piCout << x.indexWhere([](int v) {return v % 8 == 0;});
+	piCout << x.indexOf(4, -1);
+	piCout << x.lastIndexOf(1, 0);
+	piCout << x.lastIndexWhere([](int v) {return v % 8 == 0;});
+	PIVector<double> x2 = x.map<double>([](int v) {return v / 10;});
+	piCout << x2;
+	piCout << x.reduce<PIString>([](int v, PIString s){return s + PIString::fromNumber(v);});
+
+	return 0; // TODO:
+
 	PIByteArray rnd;
 	rnd.resize(1024*1024, 'x'); 
 	PICLI cli(argc, argv);