Why am I printing more characters that i expect?

[babaliaris]

Great! Another convert

Actually in your code you don't need to directly allocate any memory at all! You can let string take all the strain. Consider

//Size of the file.
file.seekg(0, std::ios::end);
std::streampos size = file.tellg();
file.seekg(0, std::ios::beg);

std::string data(size, 0);


//Read the data from the file.
file.read(data.data(), size);

//Close the string.
data[file.gcount()] = '\0';
data.resize(file.gcount());
//Close the file.
file.close();

That's a little tricky I read somewhere:

Accessing the value at data()+size() produces undefined behavior: There are no guarantees that a null character terminates the character sequence pointed by the value returned by this function. See string::c_str for a function that provides such guarantee.

A program shall not alter any of the characters in this sequence.

but i guess if you know what you are doing is fine.