On 3/14/06, Reece Dunn <msclrhd@hotmail.com> wrote:
Olaf van der Spek wrote:
I'm not sure. The code snippet you sent seems fine, so maybe the problem is elsewhere. I would check includes and namespaces.
I've now got: #include <boost/algorithm/string.hpp> #include <string> #include <vector>
std::string f() { return ""; }
int main() { std::vector<std::string> v; boost::split(v, f(), boost::is_any_of(",")); return 0; }
split_test.cpp: In function 'int main()': split_test.cpp:13: error: invalid initialization of non-const reference of type 'std::string&' from a temporary of type 'std::string'
This is because f() is returning a std::string and this is being passed to the RangeT & argument in the split function. Due to C++ rules, performing the T -> T & conversion is invalid. Try defining f() as:
const std::string f() { return ""; }
Thanks, that did the trick. I understand T -> T& isn't valid (although I don't like that), but why doesn't it automatically do T -> const T&?