Reading string from vector until whitespace in C++ [closed] - c++

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Closed 10 years ago.
This is probably easy but im not sure how. I tried searching multiple websites and yes Google and couldn't find anything on this.
My vector result[0] looks like this
A3 * * B4 * *
Declaration
vector<string> result = v.formVectorFile("Prj3 Config.txt");
I know that cin reads until whitespace so I was trying to use this to figure it out.
If I read straight from fstream I can read until whitespace, but im trying to do this with a string inside a vector and something like result[0] >> s; obviously doesnt work.
I need to read until it hits a whitespace then read the next one until whitespace. Etc...
So extract A3 by itself. Operate on it then extract * etc...

Answer 1

Your question is unclear because you don't tell us precisely what result is.
If we can assume that result is a std::vector<std::string>, then you can do something like this:
std::istringstream iss(result[0]); // consider only first string in vector
std::string item;
while(iss >> item) {
std::cout << "I found: " << item << "\n";
}
If we assume that result is std::vector<char>, then you can do this:
std::string s(result.begin(), result.end()); // consider entire vector as single string
std::istringstream iss(s);
while(iss >> item) {
std::cout << "I found: " << item << "\n";
}