I cannot figure out why this solution will let me open and modify files bytes with ofstream/ifstream, but reads/writes will not update the pointer accessed through tellp / tellg function calls.
This is a sample that does not work:
std::ofstream oStream(path,std::fstream::beg | std::fstream::binary); int test = 98; LOGI("OSTREAM POINTf :: %d", oStream.tellp()); oStream.write((char *)&test,4); LOGI("OSTREAM POINT :: %d", oStream.tellp()); oStream.close(); oStream.clear();
In Both cases, the above Log’s: 0
It cannot be said that it is not writing to the files. Because I can easily write and read any bytes I want. The problem is that, it can only read/write bytes @ the beginning of the file.
This permission is provided to my manifest, and I have ensured it is permitted on the device itself.
Source: Windows Questions C++