C++ stl 复制文件的方法

头文件
#ifndef ioshelperH
#define ioshelperH

#include <fstream>
#include <vcl.h>
//---------------------------------------------------------------------------

class IOHelper
{
public:
void CopyFiles(char* srcPath, char* destPath);
};
#endif
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源码
void IOHelper::CopyFiles(char* srcPath, char* destPath)
{
//using namespace std;
ifstream src(srcPath, ios::binary | ios::in);
if (src.fail()) {
  //"file src does not exist"
  return;
}
ofstream dest(destPath, ios::out | ios::binary | ios::app);

char buffer[32767];

//获取文件大小
//int filesize;
//src.seekg(ios::beg, ios::end);
//filesize = src.tellg();

src.seekg(ios::beg);
dest.seekp(0);

while (src.good())
{
  memset(buffer, 0, sizeof(char) * 32767);
  src.read(buffer, 32767);

  dest.write(buffer, src.gcount());

  if (src.gcount() < 32767)
            break;
}
}