white spaces

Just something I dont understand...Lets say you had the follwing data in a file:

cat and mouse
dog and flea
123

fish and bait
bird and worm
456

etc....

if I read in the file as

Code:

---

while (in.getline (str1, MAX,'\n'))
{
    in >> ws;
    in.getline( str2, MAX,'\n');
    in >> ws >> id >> ws >> ws;
}

---

it doesnt work. But if I write the last line as

Code:

---

in >> ws >> id >> ws;

---

everything is fine. Why is that? There are 2 enter's before the next block of data.

One solution is std::getline().

std::string sInput;

while (std::getline(cin, sInput))
{}

Kuphryn

I believe ws takes in all the whitespaces before the next character/until EOF, so therefore, after the first ws executes, there's nothing left for teh second ws to get rid of...