Code:#include <fstream> #include <iostream> #include <string> using namespace std; int main() { char str[100]; ofstream a_file ( "example.txt" ); a_file<<"This text will now be inside of example.txt"; a_file.close(); ifstream b_file ( "example.txt" ); b_file>> str; cout<< str <<"\n"; cin.get(); }
why is just prints "this", it supposed to print "This text will now be inside of example.txt".
is there any solution for this?
Because reading a string from a file it stops at whitespaces.
I beleive if you set "noskipws" on your iostream line, it will not do that.
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
how to set that? is it something like
if this is the case, i still get the "this", not the full string.Code:#include <fstream> #include <iostream> #include <string> using namespace std; int main() { char str[100]; ofstream a_file ( "example.txt" ); a_file<<noskipws<<"This text will now be inside of example.txt"; a_file.close(); ifstream b_file ( "example.txt" ); b_file>> str; cout<< str <<"\n"; cin.get(); }
Last edited by valthyx; 07-22-2008 at 10:16 AM.
The noskipws is used in conjunction with the ifstream object, not the ofstream object.
"Owners of dogs will have noticed that, if you provide them with food and water and shelter and affection, they will think you are god. Whereas owners of cats are compelled to realize that, if you provide them with food and water and shelter and affection, they draw the conclusion that they are gods."
-Christopher Hitchens
To read a line of input into a string std::getline is used:
Code:getline(b_file, str);
I might be wrong.
Quoted more than 1000 times (I hope).Thank you, anon. You sure know how to recognize different types of trees from quite a long way away.
none of the above works
Or chances are you messed up..... again.
>> none of the above works
anon's suggestion assumes you're using C++ strings, but your code uses C style strings. Either switch to C++ strings or lookup getline for C style strings.
Code:#include <fstream> #include <iostream> #include <string> using namespace std; int main() { char str[10]; ofstream a_file ( "example.txt" ); a_file<<"This text will now be inside of example.txt"; a_file.close(); ifstream b_file ( "example.txt" ); b_file>>noskipws>>str; cout<<noskipws<< str <<"\n"; cin.get(); }
didnt work
That is correct, I just tried it - but getline should definitely work. Just pass in sizeof(str) as the size, and you should get the 9 first letters of your line. Obviously, reading the entire line will severely overflow your 10 character long array, so that would be a bad idea.
--
Mats
Compilers can produce warnings - make the compiler programmers happy: Use them!
Please don't PM me for help - and no, I don't do help over instant messengers.
