Concatenating strings

Question

I want to join a vector into a single string, separated by spaces. For example,

sample
string
for
this
example
         


        

Answer 1

#include 
#include 
#include 
#include 
#include 

std::vector v;
...

std::stringstream ss;
std::copy(v.begin(), v.end(), std::ostream_iterator(ss, " "));
std::string result = ss.str();
if (!result.empty()) {
    result.resize(result.length() - 1); // trim trailing space
}
std::cout << result << std::endl;