Join Vector of Integers into a Delimited String

In C , converting a vector of integers into a string delimited by a specific character can be achieved through various approaches.

Using a Stringstream

One method involves using a std::stringstream, as shown in the following code:

#include 
//...

std::stringstream ss;
for (size_t i = 0; i 
Here, the stringstream object ss is used to sequentially append the integers to the string while inserting a comma as the delimiter.
Utilizing std::for_each
Alternatively, you can use the std::for_each algorithm along with a custom lambda function:
#include 
#include 
//...

std::stringstream ss;
std::for_each(v.begin(), v.end(), [&ss](int i) {
  if (ss.str().size() != 0)
    ss 
In this approach, the lambda function inserts a comma when iterating over subsequent elements, ensuring the correct delimiter placement.