Boost C++ Libraries: Ticket #7775: Allow algorithm::join to accept a container of char*

Marshall Clow — Tue, 12 Feb 2013 19:13:06 GMT

The problem is not creating from an array of char *, but from a container of char *.

boost::algorithm::join takes a "container (A) of containers (B)" and returns a "container (B)".

When the (B) container is just "char *", it has no facility for creating such a container.

std::string arr[] = { "Hi", "Mom" };
boost::algorithm::join(arr, ", ");

works fine (and returns a std::string)

std::vector<char *> strs;
strs.push_back("Hello");
strs.push_back("World!");
boost::algorithm::join(strs, ", ");

does not.

Wed, 13 Feb 2013 05:51:27 GMT

Replying to marshall:

The problem is not creating from an array of char *, but from a container of char *.

boost::algorithm::join takes a "container (A) of containers (B)" and returns a "container (B)".

When the (B) container is just "char *", it has no facility for creating such a container.
std::string arr[] = { "Hi", "Mom" };
boost::algorithm::join(arr, ", ");
works fine (and returns a std::string)

Yep, that works perfectly! Didn't know c++03 allows that. Thanks!

status changed; resolution set

Marshall Clow — Wed, 13 Feb 2013 14:11:44 GMT

status new → closed
resolution → wontfix