Listing 2 contains a program that generates the compilation-time error message that happens when you try to add the wrong type of element to a generic collection - a List in this case.

在尝试向泛型集合(本例中为List)添加错误类型的元素时，清单2中的程序会生成编译时错误消息。

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This element refers to the trace record type, and includes entry (1), exit (2), data (3), error (4), and fatal error (5).

该元素指向跟踪记录类型，包括entry (1)、exit (2)、data (3)、error(4)和fatal error (5)。

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Note that int y(2.3) is allowed in C++0x; no type narrowing is assumed, and y equals 2 while int y{2.3} is plain error.

注意，在 C++0x 中允许 int y(2.3)；由于不允许类型窄化，y 等于 2，而 int y{2.3} 是错的。

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