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68 lines
1.6 KiB
C++
68 lines
1.6 KiB
C++
/*++
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Copyright (c) 2011 Microsoft Corporation
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Module Name:
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scoped_numeral_vector.h
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Abstract:
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Wrapper for easying the pain when using vectors of numerals.
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Author:
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Leonardo de Moura (leonardo) 2011-12-03
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Revision History:
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--*/
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#ifndef _SCOPED_NUMERAL_VECTOR_H_
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#define _SCOPED_NUMERAL_VECTOR_H_
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#include"vector.h"
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template<typename Manager>
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class _scoped_numeral_vector : public svector<typename Manager::numeral> {
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Manager & m_manager;
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_scoped_numeral_vector(_scoped_numeral_vector const & v);
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public:
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_scoped_numeral_vector(Manager & m):m_manager(m) {}
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~_scoped_numeral_vector() {
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reset();
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}
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void reset() {
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unsigned sz = this->size();
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for (unsigned i = 0; i < sz; i++) {
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m().del(this->operator[](i));
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}
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svector<typename Manager::numeral>::reset();
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}
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Manager & m() const { return m_manager; }
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void push_back(typename Manager::numeral const & v) {
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svector<typename Manager::numeral>::push_back(typename Manager::numeral());
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m_manager.set(this->back(), v);
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}
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void shrink(unsigned sz) {
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unsigned old_sz = this->size();
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if (old_sz == sz)
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return;
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for (unsigned i = sz; i < old_sz; i++)
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m().del(this->operator[](i));
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svector<typename Manager::numeral>::shrink(sz);
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}
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void resize(unsigned sz) {
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unsigned old_sz = this->size();
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if (sz <= old_sz)
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shrink(sz);
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typename Manager::numeral zero(0);
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svector<typename Manager::numeral>::resize(sz, zero);
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}
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};
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#endif
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