boostorg / boostorg/program_options
program_options support std::vector and not boost::container::vector
- Lenguaje dominante
- C++
- Estrellas
- 136
- Forks
- 117
- Métricas de merge de PR
- Sin PR fusionados en 30 d
Descripción
It may seem rather obvious, but boost::program_options doesn't appear to support boost::container::vector in the manner it supports std::vector. An an example, creating an option:
` ("test,T", po::value >(),"Run a named test suite. -T :")
`
will cause clang to say:
```
In file included from rogue.c++:6:
In file included from /usr/local/include/boost/program_options.hpp:15:
In file included from /usr/local/include/boost/program_options/options_description.hpp:13:
In file included from /usr/local/include/boost/program_options/value_semantic.hpp:14:
In file included from /usr/local/include/boost/lexical_cast.hpp:32:
In file included from /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:44:
/usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:243:13: error: static_assert
failed due to requirement 'has_right_shift,
boost::binary_op_detail::dont_care>::value || boost::has_right_shift, boost::binary_op_detail::dont_care>::value' "Target type is
neither std::istream`able nor std::wistream`able"
...BOOST_STATIC_ASSERT_MSG((result_t::value || boost::has_right_shift, T >::value),
^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
```
... among other "nice" things. I've tried creating an istream for boost::container::vector and prototyping it before including program_options, but either I am not worthy or it's not possible for me to easily retrofit.
... seems like either program_options needs to make the istream optional (I'm certainly not using it) or convince boost::container::vector to include it. Dunno.
Guía de contribución
No hay ninguna guía de contribución indexada para este repositorio
Línea de trabajo
Reproduce el ejemplo reportado de po::value> y sigue el parsing de program_options junto con su gestión existente de std::vector. Comprueba cómo se convierten los valores vectoriales y si el parsing requiere innecesariamente un operador de istream; se considera terminado cuando la forma de opción mostrada se analiza correctamente sin ese operador y cuenta con cobertura de pruebas.
Escrito por el modelo de indexación a partir del texto del issue.
Evaluación
- Stack tecnológico
- cpp
- Área
- cli
- Tipo de issue
- Error
- Dificultad
- 3/5
- Tiempo estimado
- 1-2 días
- Estado de actividad
- Estancado
- Claridad
- Bastante claro
- Aptitud para principiantes
- 45/100