Question

I know there are string tokenizers but is there an "int tokenizer"?

For example, I want to split the string "12 34 46" and have:

list[0]=12

list[1]=34

list[2]=46

In particular, I’m wondering if Boost::Tokenizer does this. Although I couldn’t find any examples that didn’t use strings.

Answer 1

Yes there is: use a stream, e.g. a stringstream:

stringstream sstr("12 34 46");
int i;
while (sstr >> i)
    list.push_back(i);

Alternatively, you can also use STL algorithms and/or iterator adapters combined with constructors:

vector<int> list = vector<int>(istream_iterator<int>(sstr), istream_iterator<int>());