How to write data in >4GB file with C++?

Question

I\'m trying to write a large file, but ran into a problem.

I use long long for seeking a place to write, but can\'t write file more than 4,2Gb. What I forgot?

Mo

Answer 1

    fseeko64 (Filename, 0, SEEK_END);
    long size = ftello64 (Filename);
    fclose (Filename);

For accessing the large files , fseek cannot be used , instead have to go for fseeko64();