How to Convert a Vector of Integers to a Comma-Separated String in C ?

Converting a Vector of Integers to a Comma-Separated String

Transforming a vector of integers into a string separated by commas is a common task in programming. In Python, the elegance of this process is showcased in the provided example.

In C , however, the conversion is not as straightforward due to limitations in its syntax. One viable approach is utilizing a stringstream, as demonstrated below:

<code class="cpp">#include <sstream>
//...

std::stringstream ss;
for(size_t i = 0; i < v.size(); ++i)
{
  if(i != 0)
    ss << ",";
  ss << v[i];
}
std::string s = ss.str();</code>

Alternatively, you can employ the std::for_each function for a more compact solution:

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