/usr/include/gecode/support/dynamic-array.hpp is in libgecode-dev 4.4.0-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/*
* Main authors:
* Christian Schulte <schulte@gecode.org>
*
* Copyright:
* Christian Schulte, 2002
*
* Last modified:
* $Date: 2009-09-08 21:10:29 +0200 (Tue, 08 Sep 2009) $ by $Author: schulte $
* $Revision: 9692 $
*
* This file is part of Gecode, the generic constraint
* development environment:
* http://www.gecode.org
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include <algorithm>
namespace Gecode { namespace Support {
/**
* \brief Array with arbitrary number of elements
*
* \ingroup FuncSupport
*/
template<class T, class A>
class DynamicArray {
private:
/// Memory allocator
A& a;
/// Size of array
int n;
/// Array elements
T* x;
/// Resize to at least \a n + 1 elements
void resize(int n);
public:
/// Initialize with size \a n
DynamicArray(A& a0, int n = 32);
/// Copy elements from array \a da
DynamicArray(const DynamicArray<T,A>& da);
/// Release memory
~DynamicArray(void);
/// Assign array (copy elements from \a a)
const DynamicArray<T,A>& operator =(const DynamicArray<T,A>& da);
/// Return element at position \a i (possibly resize)
T& operator [](int i);
/// Return element at position \a i
const T& operator [](int) const;
/// Cast in to pointer of type \a T
operator T*(void);
};
template<class T, class A>
forceinline
DynamicArray<T,A>::DynamicArray(A& a0, int n0)
: a(a0), n(n0), x(a.template alloc<T>(n)) {}
template<class T, class A>
forceinline
DynamicArray<T,A>::DynamicArray(const DynamicArray<T,A>& da)
: a(da.a), n(da.n), x(a.template alloc<T>(n)) {
(void) heap.copy<T>(x,da.x,n);
}
template<class T, class A>
forceinline
DynamicArray<T,A>::~DynamicArray(void) {
a.free(x,n);
}
template<class T, class A>
forceinline const DynamicArray<T,A>&
DynamicArray<T,A>::operator =(const DynamicArray<T,A>& da) {
if (this != &da) {
if (n < da.n) {
a.free(x,n); n = da.n; x = a.template alloc<T>(n);
}
(void) heap.copy(x,da.x,n);
}
return *this;
}
template<class T, class A>
void
DynamicArray<T,A>::resize(int i) {
int m = std::max(i+1, (3*n)/2);
x = a.realloc(x,n,m);
n = m;
}
template<class T, class A>
forceinline T&
DynamicArray<T,A>::operator [](int i) {
if (i >= n) resize(i);
assert(n > i);
return x[i];
}
template<class T, class A>
forceinline const T&
DynamicArray<T,A>::operator [](int i) const {
assert(n > i);
return x[i];
}
template<class T, class A>
forceinline
DynamicArray<T,A>::operator T*(void) {
return x;
}
}}
// STATISTICS: support-any
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