WinApi与文本文件

Question

I need to copy all files from 1 directory to another, but it's not working.

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

using namespace std;

int main(int argc, char *argv[])
{
    TCHAR buffer[256];
    SetCurrentDirectory ("C:\\Users\\Rinat\\Desktop\\SP\\1");
    GetCurrentDirectory (sizeof (buffer), buffer);
    printf ("%s\n", buffer);
    WIN32_FIND_DATA FindData;
    HANDLE MyFile;

    MyFile = FindFirstFile ("*", &FindData);
    if (MyFile != INVALID_HANDLE_VALUE) {
    do {
    printf ("%s\n", FindData.cFileName);

         CopyFile("C:\\Users\\Rinat\\Desktop\\SP\\1"+FindData.cFileName, "C:\\Users\\Rinat\\Desktop\\SP\\2\\" + FindData.cFileName, FALSE);

      } while (FindNextFile (MyFile, &FindData));
   FindClose (MyFile);
}

    system("PAUSE");
    return EXIT_SUCCESS;
}

The error is 22 C:\\Users\\Rinat\\Desktop\\SP\\7.cpp invalid operands of types const char[28] and CHAR[260] to binary operator+

Answer 1

You can't add string pointers together like that in C++. You need to use a function (or a class like std::string ).

do {
    char chSrc[MAX_PATH], cdDst[MAX_PATH];
    StringCchCopy(chSrc, MAX_PATH, "C:\\Users\\Rinat\\Desktop\\SP\\1\\");
    StringCchCat(chSrc, MAX_PATH, FindData.cFileName);
    StringCchCopy(chDst, MAX_PATH, "C:\\Users\\Rinat\\Desktop\\SP\\2\\");
    StringCchCat(chDst, MAX_PATH, FindData.cFileName);
    CopyFile(chSrc, chDst, TRUE);
} ...

Using std::string :

do {
    CopyFile((std::string("C:\\Users\\Rinat\\Desktop\\SP\\1\\") + FindData.cFileName)).c_str(),
             (std::string("C:\\Users\\Rinat\\Desktop\\SP\\2\\") + FindData.cFileName)).c_str(),
             TRUE);
} ...