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+// This may look like C code, but it is really -*- C++ -*-
+/*
+Copyright (C) 1988 Free Software Foundation
+ written by Doug Lea (dl@rocky.oswego.edu)
+
+This file is part of GNU CC.
+
+GNU CC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY. No author or distributor
+accepts responsibility to anyone for the consequences of using it
+or for whether it serves any particular purpose or works at all,
+unless he says so in writing. Refer to the GNU CC General Public
+License for full details.
+
+Everyone is granted permission to copy, modify and redistribute
+GNU CC, but only under the conditions described in the
+GNU CC General Public License. A copy of this license is
+supposed to have been given to you along with GNU CC so you
+can know your rights and responsibilities. It should be in a
+file named COPYING. Among other things, the copyright notice
+and this notice must be preserved on all copies.
+*/
+
+#ifdef __GNUG__
+#pragma implementation
+#endif
+#include <stream.h>
+#include "<T>.AVec.h"
+
+/*
+ The following brought to you by the department of redundancy department
+*/
+
+<T>AVec& <T>AVec::operator = (<T>AVec& v)
+{
+ if (len != 0 && len != v.capacity())
+ error("nonconformant vectors.");
+ if (len == 0)
+ s = new <T> [len = v.capacity()];
+ if (s != v.vec())
+ {
+ for (int i = 0; i < len; ++i)
+ s[i] = v.vec()[i];
+ }
+ return *this;
+}
+
+<T>AVec& <T>AVec::operator = (<T&> f)
+{
+ for (int i = 0; i < len; ++i) s[i] = f;
+ return *this;
+}
+
+
+<T>AVec concat(<T>AVec & a, <T>AVec & b)
+{
+ int newl = a.capacity() + b.capacity();
+ <T>* news = new <T> [newl];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ while (t < top) *p++ = *t++;
+ top = &(b.vec()[b.capacity()]);
+ t = b.vec();
+ while (t < top) *p++ = *t++;
+ return <T>AVec(newl, news);
+}
+
+
+<T>AVec combine(<T>Combiner f, <T>AVec& a, <T>AVec& b)
+{
+ int newl = (a.capacity() < b.capacity())? a.capacity() : b.capacity();
+ <T>* news = new <T> [newl];
+ <T>* p = news;
+ <T>* top = &(a.vec()[newl]);
+ <T>* t = a.vec();
+ <T>* u = b.vec();
+ while (t < top) *p++ = (*f)(*t++, *u++);
+ return <T>AVec(newl, news);
+}
+
+<T>AVec reverse(<T>AVec& a)
+{
+ <T>* news = new <T> [a.capacity()];
+ if (a.capacity() != 0)
+ {
+ <T>* lo = news;
+ <T>* hi = &(news[a.capacity() - 1]);
+ while (lo < hi)
+ {
+ <T> tmp = *lo;
+ *lo++ = *hi;
+ *hi-- = tmp;
+ }
+ }
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec map(<T>Mapper f, <T>AVec& a)
+{
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ while(t < top) *p++ = (*f)(*t++);
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec <T>AVec::at(int from, int n)
+{
+ int to;
+ if (n < 0)
+ {
+ n = len - from;
+ to = len - 1;
+ }
+ else
+ to = from + n - 1;
+ if ((unsigned)from > to)
+ range_error();
+ <T>* news = new <T> [n];
+ <T>* p = news;
+ <T>* t = &(s[from]);
+ <T>* top = &(s[to]);
+ while (t <= top) *p++ = *t++;
+ return <T>AVec(n, news);
+}
+
+<T>AVec merge(<T>AVec & a, <T>AVec & b, <T>Comparator f)
+{
+ int newl = a.capacity() + b.capacity();
+ <T>* news = new <T> [newl];
+ <T>* p = news;
+ <T>* topa = &(a.vec()[a.capacity()]);
+ <T>* as = a.vec();
+ <T>* topb = &(b.vec()[b.capacity()]);
+ <T>* bs = b.vec();
+
+ for (;;)
+ {
+ if (as >= topa)
+ {
+ while (bs < topb) *p++ = *bs++;
+ break;
+ }
+ else if (bs >= topb)
+ {
+ while (as < topa) *p++ = *as++;
+ break;
+ }
+ else if ((*f)(*as, *bs) <= 0)
+ *p++ = *as++;
+ else
+ *p++ = *bs++;
+ }
+ return <T>AVec(newl, news);
+}
+
+<T>AVec operator + (<T>AVec& a, <T>AVec& b)
+{
+ a.check_len(b.capacity());
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ <T>* u = b.vec();
+ while (t < top) *p++ = *t++ + *u++;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec operator - (<T>AVec& a, <T>AVec& b)
+{
+ a.check_len(b.capacity());
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ <T>* u = b.vec();
+ while (t < top) *p++ = *t++ - *u++;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec product (<T>AVec& a, <T>AVec& b)
+{
+ a.check_len(b.capacity());
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ <T>* u = b.vec();
+ while (t < top) *p++ = *t++ * *u++;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec quotient(<T>AVec& a, <T>AVec& b)
+{
+ a.check_len(b.capacity());
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ <T>* u = b.vec();
+ while (t < top) *p++ = *t++ / *u++;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec operator + (<T>AVec& a, <T&> b)
+{
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ while (t < top) *p++ = *t++ + b;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec operator - (<T>AVec& a, <T&> b)
+{
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ while (t < top) *p++ = *t++ - b;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec operator * (<T>AVec& a, <T&> b)
+{
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ while (t < top) *p++ = *t++ * b;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec operator / (<T>AVec& a, <T&> b)
+{
+ <T>* news = new <T> [a.capacity()];
+ <T>* p = news;
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ while (t < top) *p++ = *t++ / b;
+ return <T>AVec(a.capacity(), news);
+}
+
+<T>AVec <T>AVec::operator - ()
+{
+ <T>* news = new <T> [len];
+ <T>* p = news;
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *p++ = -(*t++);
+ return <T>AVec(len, news);
+}
+
+<T>AVec& <T>AVec::operator += (<T>AVec& b)
+{
+ check_len(b.capacity());
+ <T>* u = b.vec();
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ += *u++;
+ return *this;
+}
+
+<T>AVec& <T>AVec::operator -= (<T>AVec& b)
+{
+ check_len(b.capacity());
+ <T>* u = b.vec();
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ -= *u++;
+ return *this;
+}
+
+<T>AVec& <T>AVec::product(<T>AVec& b)
+{
+ check_len(b.capacity());
+ <T>* u = b.vec();
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ *= *u++;
+ return *this;
+}
+
+<T>AVec& <T>AVec::quotient(<T>AVec& b)
+{
+ check_len(b.capacity());
+ <T>* u = b.vec();
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ /= *u++;
+ return *this;
+}
+
+<T>AVec& <T>AVec::operator += (<T&> b)
+{
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ += b;
+ return *this;
+}
+
+<T>AVec& <T>AVec::operator -= (<T&> b)
+{
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ -= b;
+ return *this;
+}
+
+<T>AVec& <T>AVec::operator *= (<T&> b)
+{
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ *= b;
+ return *this;
+}
+
+<T>AVec& <T>AVec::operator /= (<T&> b)
+{
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) *t++ /= b;
+ return *this;
+}
+
+<T> <T>AVec::max()
+{
+ if (len == 0)
+ return 0;
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ <T> res = *t++;
+ for (; t < top; ++t) if (*t > res) res = *t;
+ return res;
+}
+
+int <T>AVec::max_index()
+{
+ if (len == 0)
+ return -1;
+ int ind = 0;
+ for (int i = 1; i < len; ++i)
+ if (s[i] > s[ind])
+ ind = i;
+ return ind;
+}
+
+<T> <T>AVec::min()
+{
+ if (len == 0)
+ return 0;
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ <T> res = *t++;
+ for (; t < top; ++t) if (*t < res) res = *t;
+ return res;
+}
+
+int <T>AVec::min_index()
+{
+ if (len == 0)
+ return -1;
+ int ind = 0;
+ for (int i = 1; i < len; ++i)
+ if (s[i] < s[ind])
+ ind = i;
+ return ind;
+}
+
+<T> <T>AVec::sum()
+{
+ <T> res = 0;
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ while (t < top) res += *t++;
+ return res;
+}
+
+
+<T> <T>AVec::sumsq()
+{
+ <T> res = 0;
+ <T>* top = &(s[len]);
+ <T>* t = s;
+ for (; t < top; ++t) res += *t * *t;
+ return res;
+}
+
+<T> operator * (<T>AVec& a, <T>AVec& b)
+{
+ a.check_len(b.capacity());
+ <T>* top = &(a.vec()[a.capacity()]);
+ <T>* t = a.vec();
+ <T>* u = b.vec();
+ <T> res = 0;
+ while (t < top) res += *t++ * *u++;
+ return res;
+}
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