Note: pls don't be confused with other Stackoverflow questions that have the same title/errocode -- they are mostly due to missing #include <string> but it's not the issue here.
I'm reading Pretty-print C++ STL containers question and downloaed Kerrek's code from his GitHub Project cxx-prettyprint, when I try compile it (my environment is Windows 7, Visual Studio 2013, compiled project as a Console Application "Use Multi-Byte Character Set"), hit a template deduction error.
It's a bit weird as suggested by Mike Kinghan in the comment, it does compile compiles and runs fine with the current MSVC++ : see it online.
I'm confused, there must be something wrong with my configuration. I created a blank new Windows Console Application, and added Kerrek's code in, focus on a vector of string test cast, removed other scenarios such as set/map etc:
int main(int argc, char* argv[])
{
std::vector<std::string> v;
v.push_back("hello, world");
v.push_back("2nd line");
v.push_back("last line");
std::cout << v;
}
, now hit a error:
Error 1 error C2679: binary '<<' : no operator found which takes a right-hand operand of type 'std::vector>' (or there is no acceptable conversion)
If I explicitly call the pretty_print::operator <<,
pretty_print::operator<<(std::cout, v);
, hit another template deduction error:
Error 1 error C2784: 'std::basic_ostream<_Elem,_Traits> &pretty_print::operator <<(std::basic_ostream<_Elem,_Traits> &,const pretty_print::print_container_helper &)' : could not deduce template argument for 'const pretty_print::print_container_helper &' from 'std::vector>'
It only compiles if the print_container_helper is explictily created:
pretty_print::print_container_helper<std::vector<std::string>, char, ::std::char_traits<char>, pretty_print::delimiters<std::vector<std::string>, char>>
vh(v);
pretty_print::operator<<(std::cout, vh);
The full code is here: http://rextester.com/RJX76690
