resizeablestringformatter.cpp

来自「跨操作系统的微型中间件」· C++ 代码 · 共 30 行

/*
    File:       ResizeableStringFormatter.cpp

    Contains:   Implements object defined in ResizeableStringFormatter.h
    
    
*/

#include "ResizeableStringFormatter.h"

void    ResizeableStringFormatter::BufferIsFull(char* inBuffer, UInt32 inBufferLen)
{
    //allocate a buffer twice as big as the old one, and copy over the contents
    UInt32 theNewBufferSize = this->GetTotalBufferSize() * 2;
    if (theNewBufferSize == 0)
        theNewBufferSize = 64;
        
    char* theNewBuffer = new char[theNewBufferSize];
    ::memcpy(theNewBuffer, inBuffer, inBufferLen);

    //if the old buffer was dynamically allocated also, we'd better delete it.
    if (inBuffer != fOriginalBuffer)
        delete [] inBuffer;
    
    fStartPut = theNewBuffer;
    fCurrentPut = theNewBuffer + inBufferLen;
    fEndPut = theNewBuffer + theNewBufferSize;
}