Mauricio Gomes wrote:

The example C:\boost_1_42_0\libs\property_tree\examples\custom_data_type.cpp fails to compile for me. I am using Code::Blocks 8.02 with mingw gcc 4.4.0.

I am getting the following error message:

||=== test, Debug ===| C:\projects\test\main2.cpp||In function 'int main()':| C:\projects\test\main2.cpp|59|error: wrong number of template arguments (5, should be 3)| C:\boost_1_42_0\boost\property_tree\ptree_fwd.hpp|29|error: provided for 'template<class Key, class Data, class KeyCompare> class boost::property_tree::basic_ptree'| C:\projects\test\main2.cpp|59|error: invalid type in declaration before ';' token| C:\projects\test\main2.cpp|63|error: request for member 'put' in 'pt', which is of non-class type 'my_ptree'| C:\projects\test\main2.cpp|64|error: request for member 'get' in 'pt', which is of non-class type 'my_ptree'| C:\projects\test\main2.cpp|64|error: expected primary-expression before 'int'| C:\projects\test\main2.cpp|64|error: expected ',' or ';' before 'int'| C:\projects\test\main2.cpp|68|error: request for member 'put' in 'pt', which is of non-class type 'my_ptree'| C:\projects\test\main2.cpp|68|error: expected primary-expression before '>' token| C:\projects\test\main2.cpp|68|warning: left-hand operand of comma has no effect| C:\projects\test\main2.cpp|69|error: request for member 'get' in 'pt', which is of non-class type 'my_ptree'| C:\projects\test\main2.cpp|69|error: expected primary-expression before '>' token| C:\projects\test\main2.cpp|74|error: request for member 'put' in 'pt', which is of non-class type 'my_ptree'| C:\projects\test\main2.cpp|74|error: expected primary-expression before '>' token| C:\projects\test\main2.cpp|74|warning: left-hand operand of comma has no effect| C:\projects\test\main2.cpp|75|error: request for member 'get' in 'pt', which is of non-class type 'my_ptree'| C:\projects\test\main2.cpp|75|error: expected primary-expression before '>' token| ||=== Build finished: 15 errors, 2 warnings ===|

The problem seems to be the number of template parameters in line 59: // Property_tree with boost::any as data type // Key comparison: std::less<std::string> // Key type: std::string // Path type: path // Data type: boost::any // Translator type: my_translator typedef basic_ptree<std::less<std::string>, std::string, path, boost::any, my_translator> my_ptree; my_ptree pt;

Am I missing something ? Not all the examples have been updated after I changed a lot of details about the PTree implementation, so they don't all compile.

Sebastian