void docDB(){
int sdb = 0;
ifstream dacb("kitudacbiet.txt");
if(!dacb.is_open())
cout<<"Deo doc dc file"<<endl;
else{
while(!dacb.eof()){
dacb>>dbiet[sdb].kitu;
dacb>>dbiet[sdb].mota;
//getline(dacb,dbiet[sdb].mota);
/*
string a="";
while((dacb>>a)!= '\n'){
//strcat(dbiet[sdb].mota,a);
dbiet[sdb].mota+=a;
}
*/
sdb++;
}
}
}
Text file: "kitudacbiet.txt"
\ Dau xuyet phai
@ Dau @
# Dau #
$ Ky hieu $
( Dau mo ngoac
) Dau dong ngoac
I want read firt string of line into dbiet[sdb].kitu and the rest of line into dbiet[sdb].mota
Example: line 1 = \ Dau xuyet phai
dbiet[sdb].kitu = "\" and dbiet[sdb].mota = "Dau xuyet phai"
I would like to read line by line until i met downline character ('\n'). How to do this. Sorry my english not good.Thank
The answer is
To read a whole line from a file into a string, use std::getline like so:
std::ifstream file("my_file");
std::string temp;
std::getline(file, temp);
You can do this in a loop to until the end of the file like so:
std::ifstream file("my_file");
std::string temp;
while(std::getline(file, temp)) {
//Do with temp
}
References
http://en.cppreference.com/w/cpp/string/basic_string/getline
getline(fin, buffer, '\n')
where fin is opened file(ifstream object) and buffer is of string/char type where you want to copy line.
It looks like you are trying to parse each line. You've been shown by another answer how to use getline in a loop to seperate each line. The other tool you are going to want is istringstream, to seperate each token.
std::string line;
while(std::getline(file, line))
{
std::istringstream iss(line);
std::string token;
while (iss >> token)
{
// do something with token
}
}
Source: Stackoverflow.com