嵌套异常和原始类型 [英] nested exceptions and primitive types

问题描述

当我捕获的异常是原始类型时，我可以使用 std :: throw_with_nested 吗？

Can I use std::throw_with_nested when my captured exception is of primitive type?

，新类型从捕获的异常和新异常派生。但我不能从基本类型导出 int 。因此，我不能使用嵌套异常与原始类型。这是真的吗？

It is said, that the new type is derived from the captured exception and the new exception. But I can not derive from primitives types like int. Therefore I can not use nested exceptions with primitive types. Is that true?

推荐答案

我的标准副本说：

18.8.6 / 7 投掷：如果 U 类类型不是从 U 和<$ c $公开派生的未指定类型的 nested_exception c> cested> c> cested> c> nested_exception 并从 std :: forward< T>（t）构造，否则 std :: forward< T> ;（t）。

18.8.6/7 Throws: if U is a non-union class type not derived from nested_exception, an exception of unspecified type that is publicly derived from both U and nested_exception and constructed from std::forward<T>(t), otherwise std::forward<T>(t).

所以 throw_with_nested $ c>应该 throw 42;

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