Re: [Boost-users] [Variant]Maximum Limit of types in variant and fusion vector

On 6/18/2015 11:15 AM, Elizabeta wrote:

Hi

I want to use boost::variant with types more than 50. Until now I was using boost::variant with types up to 50 like this :

#define BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS #define BOOST_MPL_LIMIT_LIST_SIZE 50 #define BOOST_MPL_LIMIT_VECTOR_SIZE 50 #include

However , now if I change BOOST_MPL_LIMIT_LIST_SIZE and BOOST_MPL_LIMIT_VECTOR_SIZE to 100 it gives me compiler errors: Cannot open include file: 'boost/mpl/list/list100.hpp': No such file or directory

So is 50 the maximum limit of types that can be put in the variant ?

Also it seems that the maximum limit of types for vector fusion is 50, and can't increase that, and I want to have fusion vector for more than 50. Is this possible.

Any suggestion

The latest version of MPL on the 'develop' branch provides the ability for increasing MPL sizes for the maximum number of types to 100 or beyond. Look at the readme.txt file in the 'preprocessed' sub-directory.