C++ reading from file puts three weird characters
byte-order-mark, c++, file-io
Solution
You're seeing a UTF-8 Byte Order Mark (BOM). It was added by the application that created the file.
To detect and ignore the marker you could try this (untested) function:
bool SkipBOM(std::istream & in)
{
char test[4] = {0};
in.read(test, 3);
if (strcmp(test, "\xEF\xBB\xBF") == 0)
return true;
in.seekg(0);
return false;
}
Problem
When i read from a file string by string, >> operation gets first string but it starts with "i" . Assume that first string is "street", than it gets as "istreet". Other strings are okay. I tried for different txt files. The result is same. First string starts with "i". What is the problem? Here is my code : ``` #include <iostream> #include <fstream> #include <string> #include <vector> using namespace std; int cube(int x){ return (x*x*x);} int main(){ int maxChar; int lineLength=0; int cost=0; cout<<"Enter the max char per line... : "; cin>>maxChar; cout<<endl<<"Max char per line is : "<<maxChar<<endl; fstream inFile("bla.txt",ios::in); if (!inFile) { cerr << "Unable to open file datafile.txt"; exit(1); // call system to stop } while(!inFile.eof()) { string word; inFile >> word; cout<<word<<endl; cout<<word.length()<<endl; if(word.length()+lineLength<=maxChar){ lineLength +=(word.length()+1); } else { cost+=cube(maxChar-(lineLength-1)); lineLength=(word.length()+1); } } } ```