c++ - boost 可以拥有带有整数键的地图吗？

Answer 1

The error message is familiar to those with experience in C++ template programming. Ignore the sizeof part; the clue is in boost::STATIC_ASSERTION_FAILURE<false>. That type shouldn't be instantiated, you want boost::STATIC_ASSERTION_FAILURE<true>. But what exact expression is used as the template argument?

Your template instantiation error should have an instantiation stack, which leads from your code to the failure. Presumably it's checking