In my code i used eof() then i used rdstate() function to apply condition of getting to know if i have reached end of file so that i can clear() state and reset pointer position to somewhere else than eof(). One more thing i have used XOR ^ operator for condition so if both are true result be false i.e what i want. But it is not happening so kindly let me know where i am wrong.
File name is ALi.txt and contains 7 lines of text.
#include <iostream>
#include <fstream>
int main()
{
{
std::fstream file;
file.open("Ali.txt",std::ios::in);
if (file.is_open()) {
std::cout << "The File has been opened Successfully " << "\n";
std::string str;
/* Fail()function can also be replaced with good ufucntion which returns true if everything is working fine | False otherwise */
while (!file.eof()) {
file >> str;
std::cout << str << "\n";
}
std::cout << std::ifstream::eofbit << "\n" << std::fstream::failbit << "\n" << std::fstream::failbit << "\n";
/*If a bad state happened like above then you need to clear it using clear() function to work further like Reading through File*/
//std::cout << filehandler.good() << "\n"; // It is returning 0 | False here. Now to check which of above fu=nction is causing it
/*using rdstate() function. fail(4) , eof(2) and Bad(1) bytes*/
std::cout << (file.rdstate() ^ std::ifstream::eofbit) << "\n";
if ((file.rdstate() ^ std::ifstream::eofbit) == 0) {
std::cout << "It is an indicator that we have reached the end of file So now we should do something to go back to begining of file " << "\n";
file.clear();
}
file.close();
}
else {
std::cout << "The File has been Failed to open" << "\n";
}
}
}
