Why is NOT std::string defined in program equal to std::string loaded from file when printing out using prinft() and string::c_str()?

Question

When i create std::string and define it in program like this and print it to console it looks like this:

std::string shader = "#version 330\nlayout(location = 0) in vec3 vp;void main(){gl_Position = vec4(vp, 1.0);}";
printf("Original: %s\n", shader.c_str());

Output:

But when i load std::string from file the way below and then print it to console it looks like this:

std::string shader;
std::ifstream inputStream(path, std::ifstream::in);
if (inputStream.is_open())
{
    while (inputStream.good())
    {
        std::string line;
        getline(inputStream, line);
        shader.append(line);
    }
}
printf("LOADED: %s\n", shader.c_str());

Text file:

#version 330\n
layout(location=0) in vec3 vp;
void main ()
{
     gl_Position = vec4 (vp, 1.0);
}

Output:

I need it do be same when loading from file. To be more specific i need it to use the special character \n.

When i try to remove '\n':

The problem here is that i need new line between "..330" and "layout..."

Answer 1

Solution was to read text file by each character and then printing the string is correct.

std::string shader;
std::ifstream inputStream(path, std::ifstream::in);
char character;
if (inputStream.is_open())
{
    while (inputStream.get(character))
    {
        shader += character;
    }
}

Output when printing shader:

Adding \n after each getline should work too.