1

考虑以下:

// what is N?
typedef boost::variant<T1, ..., TN> variant_t;

这里可以接受多少个模板参数?

4

1 回答 1

4

答案隐藏在文档中:

http://www.boost.org/doc/libs/1_53_0/doc/html/BOOST_VARIANT_LIMIT_TYPES.html

// In header: <boost/variant/variant_fwd.hpp>

BOOST_VARIANT_LIMIT_TYPES
于 2013-06-10T15:41:53.273 回答