Re: [Boost-users] [fusion] C arrays in fusion::vector

Jean-Louis Leroy schrieb:

msvc9+fusion 1.40 reject this:

fusion::vector v;

1>C:\Users\JLL\Documents\Visual Studio 2008\Projects\boost_1_40_0\boost/fusion/container/vector/detail/vector_n.hpp(43) : error C2440: '<function-style-cast>' : cannot convert from 'int' to 'char [20]' 1> There are no conversions to array types, although there are conversions to references or pointers to arrays 1> C:\Users\JLL\Documents\Visual Studio 2008\Projects\boost_1_40_0\boost/fusion/container/vector/detail/vector_n.hpp(42) : while compiling class template member function 'boost::fusion::vector_data2::vector_data2(void)' 1> with 1> [ 1> Derived=boost::fusion::vector2, 1> T0=int, 1> T1=char [20] 1> ]

Am I doing something wrong ?

Anyway I can wrap the C array in a class (template)...

Thanks, J-L

That's because fusion containers internally initialize their elements in the default constructor via e0(T0()),...eN-1(TN-1()). I consider this to be a bug, fusion containers should initialize their elements analogue to std::pair and std::tuple simply via m0(),...mN-1(). -Christopher