615 lines
18 KiB
C
615 lines
18 KiB
C
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/*
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*
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* Copyright (c) 1994
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* Hewlett-Packard Company
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Hewlett-Packard Company makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*
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*
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* Copyright (c) 1996,1997
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* Silicon Graphics Computer Systems, Inc.
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*
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* Permission to use, copy, modify, distribute and sell this software
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* and its documentation for any purpose is hereby granted without fee,
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* provided that the above copyright notice appear in all copies and
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* that both that copyright notice and this permission notice appear
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* in supporting documentation. Silicon Graphics makes no
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* representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied warranty.
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*/
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/* NOTE: This is an internal header file, included by other STL headers.
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* You should not attempt to use it directly.
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*/
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#ifndef __SGI_STL_INTERNAL_BVECTOR_H
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#define __SGI_STL_INTERNAL_BVECTOR_H
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__STL_BEGIN_NAMESPACE
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static const int __WORD_BIT = int(CHAR_BIT*sizeof(unsigned int));
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#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
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#pragma set woff 1174
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#endif
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struct __bit_reference {
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unsigned int* p;
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unsigned int mask;
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__bit_reference(unsigned int* x, unsigned int y) : p(x), mask(y) {}
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public:
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__bit_reference() : p(0), mask(0) {}
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operator bool() const { return !(!(*p & mask)); }
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__bit_reference& operator=(bool x) {
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if (x)
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*p |= mask;
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else
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*p &= ~mask;
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return *this;
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}
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__bit_reference& operator=(const __bit_reference& x) { return *this = bool(x); }
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bool operator==(const __bit_reference& x) const {
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return bool(*this) == bool(x);
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}
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bool operator<(const __bit_reference& x) const {
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return bool(*this) < bool(x);
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}
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void flip() { *p ^= mask; }
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};
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inline void swap(__bit_reference x, __bit_reference y) {
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bool tmp = x;
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x = y;
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y = tmp;
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}
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struct __bit_iterator : public random_access_iterator<bool, ptrdiff_t> {
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typedef __bit_reference reference;
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typedef __bit_reference* pointer;
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typedef __bit_iterator iterator;
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unsigned int* p;
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unsigned int offset;
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void bump_up() {
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if (offset++ == __WORD_BIT - 1) {
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offset = 0;
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++p;
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}
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}
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void bump_down() {
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if (offset-- == 0) {
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offset = __WORD_BIT - 1;
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--p;
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}
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}
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__bit_iterator() : p(0), offset(0) {}
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__bit_iterator(unsigned int* x, unsigned int y) : p(x), offset(y) {}
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reference operator*() const { return reference(p, 1U << offset); }
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iterator& operator++() {
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bump_up();
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return *this;
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}
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iterator operator++(int) {
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iterator tmp = *this;
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bump_up();
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return tmp;
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}
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iterator& operator--() {
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bump_down();
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return *this;
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}
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iterator operator--(int) {
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iterator tmp = *this;
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bump_down();
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return tmp;
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}
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iterator& operator+=(difference_type i) {
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difference_type n = i + offset;
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p += n / __WORD_BIT;
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n = n % __WORD_BIT;
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if (n < 0) {
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offset = (unsigned int) n + __WORD_BIT;
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--p;
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} else
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offset = (unsigned int) n;
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return *this;
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}
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iterator& operator-=(difference_type i) {
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*this += -i;
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return *this;
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}
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iterator operator+(difference_type i) const {
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iterator tmp = *this;
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return tmp += i;
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}
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iterator operator-(difference_type i) const {
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iterator tmp = *this;
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return tmp -= i;
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}
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difference_type operator-(iterator x) const {
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return __WORD_BIT * (p - x.p) + offset - x.offset;
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}
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reference operator[](difference_type i) { return *(*this + i); }
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bool operator==(const iterator& x) const {
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return p == x.p && offset == x.offset;
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}
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bool operator!=(const iterator& x) const {
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return p != x.p || offset != x.offset;
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}
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bool operator<(iterator x) const {
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return p < x.p || (p == x.p && offset < x.offset);
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}
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};
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struct __bit_const_iterator
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: public random_access_iterator<bool, ptrdiff_t>
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{
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typedef bool reference;
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typedef bool const_reference;
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typedef const bool* pointer;
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typedef __bit_const_iterator const_iterator;
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unsigned int* p;
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unsigned int offset;
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void bump_up() {
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if (offset++ == __WORD_BIT - 1) {
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offset = 0;
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++p;
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}
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}
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void bump_down() {
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if (offset-- == 0) {
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offset = __WORD_BIT - 1;
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--p;
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}
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}
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__bit_const_iterator() : p(0), offset(0) {}
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__bit_const_iterator(unsigned int* x, unsigned int y) : p(x), offset(y) {}
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__bit_const_iterator(const __bit_iterator& x) : p(x.p), offset(x.offset) {}
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const_reference operator*() const {
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return __bit_reference(p, 1U << offset);
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}
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const_iterator& operator++() {
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bump_up();
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return *this;
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}
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const_iterator operator++(int) {
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const_iterator tmp = *this;
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bump_up();
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return tmp;
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}
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const_iterator& operator--() {
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bump_down();
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return *this;
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}
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const_iterator operator--(int) {
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const_iterator tmp = *this;
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bump_down();
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return tmp;
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}
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const_iterator& operator+=(difference_type i) {
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difference_type n = i + offset;
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p += n / __WORD_BIT;
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n = n % __WORD_BIT;
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if (n < 0) {
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offset = (unsigned int) n + __WORD_BIT;
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--p;
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} else
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offset = (unsigned int) n;
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return *this;
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}
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const_iterator& operator-=(difference_type i) {
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*this += -i;
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return *this;
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}
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const_iterator operator+(difference_type i) const {
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const_iterator tmp = *this;
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return tmp += i;
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}
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const_iterator operator-(difference_type i) const {
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const_iterator tmp = *this;
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return tmp -= i;
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}
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difference_type operator-(const_iterator x) const {
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return __WORD_BIT * (p - x.p) + offset - x.offset;
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}
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const_reference operator[](difference_type i) {
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return *(*this + i);
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}
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bool operator==(const const_iterator& x) const {
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return p == x.p && offset == x.offset;
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}
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bool operator!=(const const_iterator& x) const {
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return p != x.p || offset != x.offset;
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}
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bool operator<(const_iterator x) const {
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return p < x.p || (p == x.p && offset < x.offset);
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}
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};
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// The next few lines are confusing. What we're doing is declaring a
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// partial specialization of vector<T, Alloc> if we have the necessary
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// compiler support. Otherwise, we define a class bit_vector which uses
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// the default allocator. In either case, we typedef "data_allocator"
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// appropriately.
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#if defined(__STL_CLASS_PARTIAL_SPECIALIZATION) && !defined(__STL_NEED_BOOL)
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#define __SGI_STL_VECBOOL_TEMPLATE
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#define __BVECTOR vector
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#else
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#undef __SGI_STL_VECBOOL_TEMPLATE
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#define __BVECTOR bit_vector
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#endif
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# ifdef __SGI_STL_VECBOOL_TEMPLATE
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__STL_END_NAMESPACE
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# include <stl_vector.h>
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__STL_BEGIN_NAMESPACE
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template<class Alloc> class vector<bool, Alloc>
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# else /* __SGI_STL_VECBOOL_TEMPLATE */
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class bit_vector
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# endif /* __SGI_STL_VECBOOL_TEMPLATE */
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{
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# ifdef __SGI_STL_VECBOOL_TEMPLATE
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typedef simple_alloc<unsigned int, Alloc> data_allocator;
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# else /* __SGI_STL_VECBOOL_TEMPLATE */
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typedef simple_alloc<unsigned int, alloc> data_allocator;
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# endif /* __SGI_STL_VECBOOL_TEMPLATE */
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public:
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typedef bool value_type;
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typedef size_t size_type;
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typedef ptrdiff_t difference_type;
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typedef __bit_reference reference;
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typedef bool const_reference;
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typedef __bit_reference* pointer;
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typedef const bool* const_pointer;
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typedef __bit_iterator iterator;
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typedef __bit_const_iterator const_iterator;
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#ifdef __STL_CLASS_PARTIAL_SPECIALIZATION
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typedef reverse_iterator<const_iterator> const_reverse_iterator;
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typedef reverse_iterator<iterator> reverse_iterator;
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#else /* __STL_CLASS_PARTIAL_SPECIALIZATION */
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typedef reverse_iterator<const_iterator, value_type, const_reference,
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difference_type> const_reverse_iterator;
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typedef reverse_iterator<iterator, value_type, reference, difference_type>
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reverse_iterator;
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#endif /* __STL_CLASS_PARTIAL_SPECIALIZATION */
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protected:
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iterator start;
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iterator finish;
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unsigned int* end_of_storage;
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unsigned int* bit_alloc(size_type n) {
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return data_allocator::allocate((n + __WORD_BIT - 1)/__WORD_BIT);
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}
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void deallocate() {
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if (start.p)
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data_allocator::deallocate(start.p, end_of_storage - start.p);
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}
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void initialize(size_type n) {
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unsigned int* q = bit_alloc(n);
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end_of_storage = q + (n + __WORD_BIT - 1)/__WORD_BIT;
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start = iterator(q, 0);
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finish = start + difference_type(n);
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}
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void insert_aux(iterator position, bool x) {
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if (finish.p != end_of_storage) {
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copy_backward(position, finish, finish + 1);
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*position = x;
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++finish;
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}
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else {
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size_type len = size() ? 2 * size() : __WORD_BIT;
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unsigned int* q = bit_alloc(len);
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iterator i = copy(begin(), position, iterator(q, 0));
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*i++ = x;
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finish = copy(position, end(), i);
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deallocate();
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end_of_storage = q + (len + __WORD_BIT - 1)/__WORD_BIT;
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start = iterator(q, 0);
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}
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}
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#ifdef __STL_MEMBER_TEMPLATES
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template <class InputIterator>
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void initialize_range(InputIterator first, InputIterator last,
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input_iterator_tag) {
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start = iterator();
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finish = iterator();
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end_of_storage = 0;
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for ( ; first != last; ++first)
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push_back(*first);
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}
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template <class ForwardIterator>
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void initialize_range(ForwardIterator first, ForwardIterator last,
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forward_iterator_tag) {
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size_type n = 0;
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distance(first, last, n);
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initialize(n);
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copy(first, last, start);
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}
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template <class InputIterator>
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void insert_range(iterator pos,
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InputIterator first, InputIterator last,
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input_iterator_tag) {
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for ( ; first != last; ++first) {
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pos = insert(pos, *first);
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++pos;
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}
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}
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template <class ForwardIterator>
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void insert_range(iterator position,
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ForwardIterator first, ForwardIterator last,
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forward_iterator_tag) {
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if (first != last) {
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size_type n = 0;
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distance(first, last, n);
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if (capacity() - size() >= n) {
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copy_backward(position, end(), finish + difference_type(n));
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copy(first, last, position);
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finish += difference_type(n);
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}
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else {
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size_type len = size() + max(size(), n);
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unsigned int* q = bit_alloc(len);
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iterator i = copy(begin(), position, iterator(q, 0));
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i = copy(first, last, i);
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finish = copy(position, end(), i);
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deallocate();
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end_of_storage = q + (len + __WORD_BIT - 1)/__WORD_BIT;
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start = iterator(q, 0);
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}
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}
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}
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#endif /* __STL_MEMBER_TEMPLATES */
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public:
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iterator begin() { return start; }
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const_iterator begin() const { return start; }
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iterator end() { return finish; }
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const_iterator end() const { return finish; }
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reverse_iterator rbegin() { return reverse_iterator(end()); }
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const_reverse_iterator rbegin() const {
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return const_reverse_iterator(end());
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}
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reverse_iterator rend() { return reverse_iterator(begin()); }
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const_reverse_iterator rend() const {
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return const_reverse_iterator(begin());
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}
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size_type size() const { return size_type(end() - begin()); }
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size_type max_size() const { return size_type(-1); }
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size_type capacity() const {
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return size_type(const_iterator(end_of_storage, 0) - begin());
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}
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bool empty() const { return begin() == end(); }
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reference operator[](size_type n) {
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return *(begin() + difference_type(n));
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}
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const_reference operator[](size_type n) const {
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return *(begin() + difference_type(n));
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}
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__BVECTOR() : start(iterator()), finish(iterator()), end_of_storage(0) {}
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__BVECTOR(size_type n, bool value) {
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initialize(n);
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fill(start.p, end_of_storage, value ? ~0 : 0);
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}
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__BVECTOR(int n, bool value) {
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initialize(n);
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fill(start.p, end_of_storage, value ? ~0 : 0);
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}
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__BVECTOR(long n, bool value) {
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initialize(n);
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fill(start.p, end_of_storage, value ? ~0 : 0);
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}
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explicit __BVECTOR(size_type n) {
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initialize(n);
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fill(start.p, end_of_storage, 0);
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}
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__BVECTOR(const __BVECTOR& x) {
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initialize(x.size());
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copy(x.begin(), x.end(), start);
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}
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#ifdef __STL_MEMBER_TEMPLATES
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template <class InputIterator>
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__BVECTOR(InputIterator first, InputIterator last) {
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initialize_range(first, last, iterator_category(first));
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}
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#else /* __STL_MEMBER_TEMPLATES */
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__BVECTOR(const_iterator first, const_iterator last) {
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size_type n = 0;
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distance(first, last, n);
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initialize(n);
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|
copy(first, last, start);
|
||
|
}
|
||
|
__BVECTOR(const bool* first, const bool* last) {
|
||
|
size_type n = 0;
|
||
|
distance(first, last, n);
|
||
|
initialize(n);
|
||
|
copy(first, last, start);
|
||
|
}
|
||
|
#endif /* __STL_MEMBER_TEMPLATES */
|
||
|
|
||
|
~__BVECTOR() { deallocate(); }
|
||
|
__BVECTOR& operator=(const __BVECTOR& x) {
|
||
|
if (&x == this) return *this;
|
||
|
if (x.size() > capacity()) {
|
||
|
deallocate();
|
||
|
initialize(x.size());
|
||
|
}
|
||
|
copy(x.begin(), x.end(), begin());
|
||
|
finish = begin() + difference_type(x.size());
|
||
|
return *this;
|
||
|
}
|
||
|
void reserve(size_type n) {
|
||
|
if (capacity() < n) {
|
||
|
unsigned int* q = bit_alloc(n);
|
||
|
finish = copy(begin(), end(), iterator(q, 0));
|
||
|
deallocate();
|
||
|
start = iterator(q, 0);
|
||
|
end_of_storage = q + (n + __WORD_BIT - 1)/__WORD_BIT;
|
||
|
}
|
||
|
}
|
||
|
reference front() { return *begin(); }
|
||
|
const_reference front() const { return *begin(); }
|
||
|
reference back() { return *(end() - 1); }
|
||
|
const_reference back() const { return *(end() - 1); }
|
||
|
void push_back(bool x) {
|
||
|
if (finish.p != end_of_storage)
|
||
|
*finish++ = x;
|
||
|
else
|
||
|
insert_aux(end(), x);
|
||
|
}
|
||
|
void swap(__BVECTOR& x) {
|
||
|
__STD::swap(start, x.start);
|
||
|
__STD::swap(finish, x.finish);
|
||
|
__STD::swap(end_of_storage, x.end_of_storage);
|
||
|
}
|
||
|
iterator insert(iterator position, bool x = bool()) {
|
||
|
difference_type n = position - begin();
|
||
|
if (finish.p != end_of_storage && position == end())
|
||
|
*finish++ = x;
|
||
|
else
|
||
|
insert_aux(position, x);
|
||
|
return begin() + n;
|
||
|
}
|
||
|
|
||
|
#ifdef __STL_MEMBER_TEMPLATES
|
||
|
template <class InputIterator> void insert(iterator position,
|
||
|
InputIterator first,
|
||
|
InputIterator last) {
|
||
|
insert_range(position, first, last, iterator_category(first));
|
||
|
}
|
||
|
#else /* __STL_MEMBER_TEMPLATES */
|
||
|
void insert(iterator position, const_iterator first,
|
||
|
const_iterator last) {
|
||
|
if (first == last) return;
|
||
|
size_type n = 0;
|
||
|
distance(first, last, n);
|
||
|
if (capacity() - size() >= n) {
|
||
|
copy_backward(position, end(), finish + n);
|
||
|
copy(first, last, position);
|
||
|
finish += n;
|
||
|
}
|
||
|
else {
|
||
|
size_type len = size() + max(size(), n);
|
||
|
unsigned int* q = bit_alloc(len);
|
||
|
iterator i = copy(begin(), position, iterator(q, 0));
|
||
|
i = copy(first, last, i);
|
||
|
finish = copy(position, end(), i);
|
||
|
deallocate();
|
||
|
end_of_storage = q + (len + __WORD_BIT - 1)/__WORD_BIT;
|
||
|
start = iterator(q, 0);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void insert(iterator position, const bool* first, const bool* last) {
|
||
|
if (first == last) return;
|
||
|
size_type n = 0;
|
||
|
distance(first, last, n);
|
||
|
if (capacity() - size() >= n) {
|
||
|
copy_backward(position, end(), finish + n);
|
||
|
copy(first, last, position);
|
||
|
finish += n;
|
||
|
}
|
||
|
else {
|
||
|
size_type len = size() + max(size(), n);
|
||
|
unsigned int* q = bit_alloc(len);
|
||
|
iterator i = copy(begin(), position, iterator(q, 0));
|
||
|
i = copy(first, last, i);
|
||
|
finish = copy(position, end(), i);
|
||
|
deallocate();
|
||
|
end_of_storage = q + (len + __WORD_BIT - 1)/__WORD_BIT;
|
||
|
start = iterator(q, 0);
|
||
|
}
|
||
|
}
|
||
|
#endif /* __STL_MEMBER_TEMPLATES */
|
||
|
|
||
|
void insert(iterator position, size_type n, bool x) {
|
||
|
if (n == 0) return;
|
||
|
if (capacity() - size() >= n) {
|
||
|
copy_backward(position, end(), finish + difference_type(n));
|
||
|
fill(position, position + difference_type(n), x);
|
||
|
finish += difference_type(n);
|
||
|
}
|
||
|
else {
|
||
|
size_type len = size() + max(size(), n);
|
||
|
unsigned int* q = bit_alloc(len);
|
||
|
iterator i = copy(begin(), position, iterator(q, 0));
|
||
|
fill_n(i, n, x);
|
||
|
finish = copy(position, end(), i + difference_type(n));
|
||
|
deallocate();
|
||
|
end_of_storage = q + (len + __WORD_BIT - 1)/__WORD_BIT;
|
||
|
start = iterator(q, 0);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
void insert(iterator pos, int n, bool x) { insert(pos, (size_type)n, x); }
|
||
|
void insert(iterator pos, long n, bool x) { insert(pos, (size_type)n, x); }
|
||
|
|
||
|
void pop_back() { --finish; }
|
||
|
void erase(iterator position) {
|
||
|
if (position + 1 != end())
|
||
|
copy(position + 1, end(), position);
|
||
|
--finish;
|
||
|
}
|
||
|
void erase(iterator first, iterator last) {
|
||
|
finish = copy(last, end(), first);
|
||
|
}
|
||
|
void resize(size_type new_size, bool x = bool()) {
|
||
|
if (new_size < size())
|
||
|
erase(begin() + difference_type(new_size), end());
|
||
|
else
|
||
|
insert(end(), new_size - size(), x);
|
||
|
}
|
||
|
void clear() { erase(begin(), end()); }
|
||
|
};
|
||
|
|
||
|
#ifdef __SGI_STL_VECBOOL_TEMPLATE
|
||
|
|
||
|
typedef vector<bool, alloc> bit_vector;
|
||
|
|
||
|
#else /* __SGI_STL_VECBOOL_TEMPLATE */
|
||
|
|
||
|
inline bool operator==(const bit_vector& x, const bit_vector& y) {
|
||
|
return x.size() == y.size() && equal(x.begin(), x.end(), y.begin());
|
||
|
}
|
||
|
|
||
|
inline bool operator<(const bit_vector& x, const bit_vector& y) {
|
||
|
return lexicographical_compare(x.begin(), x.end(), y.begin(), y.end());
|
||
|
}
|
||
|
|
||
|
#endif /* __SGI_STL_VECBOOL_TEMPLATE */
|
||
|
|
||
|
#undef __SGI_STL_VECBOOL_TEMPLATE
|
||
|
#undef __BVECTOR
|
||
|
|
||
|
#if defined(__sgi) && !defined(__GNUC__) && (_MIPS_SIM != _MIPS_SIM_ABI32)
|
||
|
#pragma reset woff 1174
|
||
|
#endif
|
||
|
|
||
|
__STL_END_NAMESPACE
|
||
|
|
||
|
#endif /* __SGI_STL_INTERNAL_BVECTOR_H */
|
||
|
|
||
|
// Local Variables:
|
||
|
// mode:C++
|
||
|
// End:
|