Basic input/output

Given an input file stream ifs, what would you ask the stream object (e.g., ifs.what()) to inquire whether the stream is successfully bound to a file?

True or false? Formatted reads are whitespace delimited.

Assume that the file aggieland.txt is composed as follows:

Century Tree

std::ifstream ifs{"aggieland.txt"};
std::string str;
ifs >> str;

Assume that the file football.txt is composed as follows:

the 12th Man

std::ifstream ifs{"football.txt"};
std::string read1;
int read2;
ifs >> read1 >> read2;

If you would like to append to an existing file, you must specify this intention, otherwise the file will be overwritten. From the lesson, you must specify   as the second argument in constructing the std::ofstream. Hint: your response should start with std::.