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General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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I'm trying to read a file and write the data I read into a structure. With the getline function, i read the whole line, and then divide it in columns. Each term goes into an argument of the structure, and each line is a new instance of the structure. The problem is that my first column is empty.
The folowing code works partially, I read the whole file, all the other columns work perfectly but the first one is filled with nothing.
this is my structure and the data I put into it :
struct employe { int num_employe; string nom; string prenom; string date_naissance; string ville_resi; int code_postal; }; employe saisir_1_employe(vector row) { employe e; e.num_employe = stoi(row[0]); e.nom = row[1]; e.prenom = row[2]; e.date_naissance = row[3]; e.ville_resi = row[4]; e.code_postal = stoi(row[5]); return (e); }
I extract the data from the file like this :
if (myfile.is_open()) { while (myfile >> temp) { row.clear(); // read an entire row and // store it in a string variable 'line' getline(myfile, line, '\n'); istringstream s(line); // read every column data of a row and // store it in a string variable, 'word' while (getline(s, word, '\t')) { // add all the column data // of a row to a vector row.push_back(word); } e = saisir_1_employe(row); afficher_1_employe(e); } }
my file I extract the data from looks like this : https://pastebin.com/Nfhu2tEp
When I display the second column (cout << row[1]) i get the names perfectly. But when I do cout << row[0] i get an empty column when it is supposed to be a string that I then convert to an int with e.num_employe = stoi(row[0]). It's there and has the right number of lines but just empty.
cout << row[1]
cout << row[0]
e.num_employe = stoi(row[0])
I think you should loop like this
while(std::getline(myfile, line, '\n'))
instead of
while (myfile >> temp)
which is cutting away the first word in every line
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