example of compiling a test program against mapnik local build

visitor-test.cpp

#include <mapnik/image_data.hpp>
#include <mapnik/image_data_any.hpp>
#include <mapnik/util/variant.hpp>
#include <iostream>

/*

source localize.sh
clang++ -o visitor-test visitor-test.cpp -Wpadded \
  -isystem /Users/dane/projects/mapnik-packaging/osx/out/build-cpp11-libcpp-x86_64-macosx/include \
  `mapnik-config --all-flags` -Ideps -Lsrc -Ideps/agg/include -Iinclude

*/

struct tiff_setter : public mapnik::util::static_visitor<>
{
    tiff_setter(std::string & output) :
      output_(output) {}

    template <typename T>
    void operator() (T const&) const
    {
        output_ += typeid(T).name();
    }

    void operator() (mapnik::image_data_32 const&) const
    {
        output_ += "image_data_32\n";
    }

    private:
        std::string & output_;
};


int main() {
    std::string output("");
    tiff_setter setter(output);
    mapnik::image_data_32 image(1,1);
    mapnik::image_data_16 image2(1,1);
    mapnik::image_data_8  image3(1,1);
    //mapnik::util::apply_visitor(setter,image);
    setter(image);
    setter(image2);
    std::clog << "output: " << output << "\n";
//    mapnik::util::apply_visitor(setter,image);

}