Template and typename

[Carlos Martinez Garcia]

Hi all:

I have the template class:

template<typename InfoTabla> class TablaBusqueda {
typename InfoTabla::Tabla TipoTabla;
typename InfoTabla::Registro TipoRegistro;
typename InfoTabla::TipoClave TipoClave;
typedef map<TipoClave,TipoRegistro> Tabla; //line 9

...
};

When I compile I get the error:

hdrs/BDNotifUssd.h:9: error: invalid use of member `
ussd::TablaBusqueda<InfoTabla>::TipoClave'


I want to create a map with template parameters from TablaBusqueda
template parameter.

What is wrong?

Thanks in advance

 

[kkk]

I believe you have forgot to write typedef before typename.
use the following statements:
typedef typename InfoTabla::Tabla TipoTabla;
typedef typename InfoTabla::Registro TipoRegistro;
typedef typename InfoTabla::TipoClave TipoClave;
typedef map<TipoClave,TipoRegistro> Tabla; //line 9

You have to pass a data type in map template arguments.
using just typename InfoTabla::Tabla TipoTabla; will assume that you
have defined a variable named TipoTabla with type InfoTable::Table.