C / C++ / MFC

ifstream ifs;
ifs.open( "sample.txt", ifstream::in);
if( !ifs.is_open()) {
  //Cry out
}

swaroopkb wrote:

still the same problem exists

swaroopkb wrote:

the buff value, its not getting cleared

std::fstream f("a.txt", std::ios::in);
std::cout << f.rdbuf();   // Display content: "ABCDEFG"
std::cout << "\n---\n";
std::streamsize n;
f.seekg(0, std::ios::end);
n = f.tellg();  // Get the file size.
f.seekg(0, std::ios::beg);
f.ignore(n);    // Flush buffer.
std::cout << f.rdbuf();   // Displays nothing.

void main( void )
{
    std::ifstream ifs;
 
    ifs.open("<path_of_file>\\sample.txt");
    if (! ifs.is_open())
        std::cout << "File not opened\n";
    else
        std::cout << "File opened\n";
}

Mushq wrote:

Is there any way to call non static method in static method of a class

pther wrote:

But pTopWnd is coming NULL.Why?