forked from KolibriOS/kolibrios
92 lines
2.9 KiB
C
92 lines
2.9 KiB
C
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/******************************************************************
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* 21 days: a game for programmers
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* Copyright (C) 2014 Maxim Grishin
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*
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* This file contains a part of file "/include/vector" from menuetlibc
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* adapted to the developer's needs.
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* Changes:
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* 1. "*__cdecl" replaced with "* __attribute__((cdecl))" in order
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* to compile a C++ project.
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* 2. Added front() methods with the following code:
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* T& front() {return data[0];}
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* 3. Code reformatted
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*
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********************************************************************/
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#ifndef KOS_VECTOR_H
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#define KOS_VECTOR_H
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extern void * __attribute__((cdecl)) operator new(size_t);
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inline void * __attribute__((cdecl)) operator new(size_t, void *_P) {
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return (_P);
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}
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template<class T> class vector21 {
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unsigned length;
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unsigned allocated;
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T* data;
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public:
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typedef unsigned size_type;
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typedef T* iterator;
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vector21():length(0),allocated(0),data(NULL) {}
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~vector21() {for (unsigned i=length;i--;)data[i].~T();free(data);}
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unsigned size() const {return length;}
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void clear() {length=0;}
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T& operator[](unsigned pos) {return data[pos];}
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T* begin() {return data;}
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T* end() {return data+length;}
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void push_back(const T& x) {
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if (length==allocated){
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allocated+=16;
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data=(T*)realloc(data,allocated*sizeof(T));
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}
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new (data+length++) T(x);
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}
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bool empty() const {return length==0;}
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void pop_back() {data[--length].~T();}
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T& back() {return data[length-1];}
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T& front() {return data[0];}
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iterator erase(iterator it) {
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T* a=it;
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while (++a != data+length) {
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a[-1] = *a;
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}
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length--;
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return it;
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}
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/*iterator*/T* insert(iterator where, const T& what = T()) {
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int z=where-data;
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if (length==allocated) {
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allocated+=16;
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data=(T*)realloc(data,allocated*sizeof(T));
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}
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T* a=data+length;
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T* b=data+z;
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length++;
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while (a != b) {
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*a = a[-1];
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--a;
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}
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*a = what;
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return /*iterator*/a;
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}
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};
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#endif
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