Question

I have following requirement,


std::vector< std::vector < std::string > > segments;

There are unknown number of segments, but each segment is of fixed size say 1000. But, I am not able to figure out how do I declare variable segments with my requirements.

I tried

std::vector< std::vector < std::string >(1000) > segments; // not working


Thanks in advance..

Answer 1

You can’t. You have to loop through and call reserve manually. (And for that matter there are no vectors inside segments yet.. how could reserve space in a nonexistent vector? 🙂 )