On Wed, 7 Apr 2010, Yaohua Xiong wrote:

Hi,

I'm trying to figure out how to use property_map in boost graph, after I reduce the problem to the minimal I still don't know what the problem is. Can someone help with this? Thanks in advance.

Here is the simplified example:

#include <iostream> #include <map> #include <string> #include <boost/property_map/property_map.hpp> using std::string; using boost::put; using boost::get;

int main() { typedef std::map<std::string, int> Map; typedef boost::associative_property_map<Map> PMap;

PMap map; put(map, string("acc"), 1); get(map, string("acc"));

return EXIT_SUCCESS; }

This version compiles OK with mingw 4.4, but crash when running. If I make a change from "PMap map;" into "PMap map();" which I think is equivalent, then this code fail to compile, and say

D:\myproject\test\boost_test\property_map\pp.cpp: In function 'int main()': D:\myproject\test\boost_test\property_map\pp.cpp:15: error: no matching function for call to 'put(main()::PMap (&)(), std::string, int)' D:\myproject\test\boost_test\property_map\pp.cpp:16: error: no matching function for call to 'get(main()::PMap (&)(), std::string)'

The declaration "PMap map();" declares a function named "map" that returns an object of type "PMap". Just use the original form "PMap map;" if you want to declare an actual map. -- Jeremiah Willcock