I wanted to read the short binaries from an external file with the key.
3 A 0100 3 E 0101 3 G 0110 3 M 0111 3 N 1010 3 H 1011 2 S 100 1 T 00 2 10 2 I 111
3 is in an int called pos
A is in a char called al
0100 is in an array called bin etc...
- 5Possible duplicate of How to read and write to a text file in C++?OzizLK– OzizLK2017-01-28 03:49:29 +00:00Commented Jan 28, 2017 at 3:49
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1 Answer
Open your file, read the file data line by line and extract what you need from the line.
std::string line; ifstream read; //open data files read.open(file_name); if(read.is_open()) cout << "File ./" << file_name << " is open.\n"; else { cout << "Error opening " << file_name << ".\n"; exit(0); } while (std::getline(read, line)) { // line =3 A 0100 3 E 0101 3 G 0110 3 ... std::istringstream iss (std::move(line)); std::string val_str, al, bin; while(! iss.str().empty()) { try{ iss>>val_str; int val= std::stoi(val_str); //val = 3 in the first run of the while loop iss >> al; //al = A in the first run of the while loop iss >> bin // you can use val, al ,bin }catch(..){ break; } } } 