C ++中的抛出和三元运算符 [英] Throw and ternary operator in C++

问题描述

以下代码使用G ++ 4.6.1编译，但不能与Visual Studio 2008一起编译

The following code compiles with G++ 4.6.1, but not with Visual Studio 2008

return (m_something == 0) ? 
    throw std::logic_error("Something wrong happened") : m_something;

事实是Visual Studio编译器执行内部崩溃。

The fact is the Visual Studio compiler performs an internal crash.

我想知道这是标准C ++，为什么它不能用Visual Studio编译，但是用G ++编译？

I want to know if this is standard C++ and why it doesn't compile with Visual Studio, but does with G++?

推荐答案

它是标准的C ++。条件表达式中的then / else表达式中的一个（或两个）允许为throw-expression（C ++ 98 5.16 / 2）。

It is standard C++. Either (or both) of the then/else expressions in a conditional expression is allowed to be a throw-expression instead (C++98 5.16/2).

Visual Studio崩溃时编译它...这似乎是不幸的！

If Visual Studio crashes when compiling it... that would seem to be unfortunate!

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