overskriv kun hvis .

#include <windows.h>
#include <stdlib.h>
#include <string>
#include <iostream>

void DoCopy(std::string aSrc, std::string aDest, FILETIME &aSrcFileTime)
{
  WIN32_FIND_DATA FindFileData;
  HANDLE hFind = FindFirstFile(aDest.c_str(), &FindFileData);
  if(hFind != INVALID_HANDLE_VALUE &&
      CompareFileTime(&aSrcFileTime, &FindFileData.ftLastWriteTime) < 0)
  {
      std::cout << "Dest is newer than source: " << aSrc << std::endl;
      return;
  }
  if(!CopyFile(aSrc.c_str(), aDest.c_str(), false))
      std::cerr << "Failed to copy: " << aSrc << std::endl;
  else
      std::cout << aSrc << std::endl;
}

void DoScan(std::string aSrc, std::string aDest)
{
  std::string SrcPattern = aSrc + "*";
  WIN32_FIND_DATA FindFileData;
  HANDLE hFind = FindFirstFile(SrcPattern.c_str(), &FindFileData);
  if (hFind == INVALID_HANDLE_VALUE)
  {
    std::cerr << "Invalid File Handle. GetLastError reports: " <<  GetLastError() << std::endl;
    return;
  }
  else
  {
    CreateDirectory(aDest.c_str(), 0);
    do
    {
        if(!(FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY))
        {
          DoCopy(aSrc + FindFileData.cFileName, aDest + FindFileData.cFileName, FindFileData.ftLastWriteTime);
        }
        else if(strcmp(FindFileData.cFileName, ".") && strcmp(FindFileData.cFileName, ".."))
          DoScan(aSrc + std::string(FindFileData.cFileName) + "\\", aDest + std::string(FindFileData.cFileName) + "\\");
    }
    while(FindNextFile(hFind, &FindFileData));
    FindClose(hFind);
  }
}

int main(void)
{
  DoScan("D:\\temp1\\", "D:\\temp2\\");
  return EXIT_SUCCESS;
}

Takker alt for meget.. vil du stadig ikke have points ?

Nej tak. Jeg har holdt mig pointfri i et helt år nu, lad mig ikke blive fristet ;-)

hehe okay fair nok... Tusind tak...

Der kommer lige en forbedret DoCopy. Den lukker handlen og undlader at kopiere hvis filerne er fra samme tid:

void DoCopy(std::string aSrc, std::string aDest, FILETIME &aSrcFileTime)
{
  WIN32_FIND_DATA FindFileData;
  HANDLE hFind = FindFirstFile(aDest.c_str(), &FindFileData);
  if(hFind != INVALID_HANDLE_VALUE)
  {
      if(CompareFileTime(&aSrcFileTime, &FindFileData.ftLastWriteTime) <= 0)
      {
        std::cout << "Dest is newer than source: " << aSrc << std::endl;
        FindClose(hFind);
        return;
      }
      FindClose(hFind);
  }
  if(!CopyFile(aSrc.c_str(), aDest.c_str(), false))
      std::cerr << "Failed to copy: " << aSrc << std::endl;
  else
      std::cout << aSrc << std::endl;
}