mxe.git - MXE (M cross environment) is a Makefile that compiles a cross compiler and cross compiles many free libraries.

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/****************************************************************************** * * * * * Copyright (C) 1997-2008 by Dimitri van Heesch. * * Permission to use, copy, modify, and distribute this software and its * documentation under the terms of the GNU General Public License is hereby * granted. No representations are made about the suitability of this software * for any purpose. It is provided "as is" without express or implied warranty. * See the GNU General Public License for more details. * * Documents produced by Doxygen are derivative works derived from the * input used in their production; they are not affected by this license. * */ #ifndef _BUFSTR_H #define _BUFSTR_H #include "qtbc.h" #include <stdio.h> #include <stdlib.h> /*! @brief Buffer used to store strings * * This buffer is used append characters and strings. It will automatically * resize itself, yet provide efficient random access to the content. */ class BufStr { public: BufStr(int size) : m_size(size), m_writeOffset(0), m_spareRoom(10240), m_buf(0) { m_buf = (char *)malloc(size); } ~BufStr() { free(m_buf); } void addChar(char c) { makeRoomFor(1); m_buf[m_writeOffset++]=c; } void addArray(const char *a,int len) { makeRoomFor(len); memcpy(m_buf+m_writeOffset,a,len); m_writeOffset+=len; } void skip(uint s) { makeRoomFor(s); m_writeOffset+=s; } void shrink( uint newlen ) { m_writeOffset=newlen; resize(newlen); } void resize( uint newlen ) { m_size=newlen; if (m_writeOffset>=m_size) // offset out of range -> enlarge { m_size=m_writeOffset+m_spareRoom; } m_buf = (char *)realloc(m_buf,m_size); } char *data() const { return m_buf; } char &at(uint i) const { return m_buf[i]; } bool isEmpty() const { return m_writeOffset==0; } operator const char *() const { return m_buf; } uint curPos() const { return m_writeOffset; } private: void makeRoomFor(uint size) { if (m_writeOffset+size>=m_size) { resize(m_size+size+m_spareRoom); } } uint m_size; uint m_writeOffset; const int m_spareRoom; // 10Kb extra room to avoid frequent resizing char *m_buf; }; #endif


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