英文:
Don't allow nested switches in GCC
问题
我在C语言中使用协程，使用多个宏来简化代码编写。众所周知，这些宏将代码封装在一个大的switch语句中，并使用case __LINE__来确定返回位置。问题在于，在协程内部使用switch会导致失败，因为case __LINE__将属于内部switch而不是外部的。
通过向GCC传递参数，是否可以“禁用”嵌套switch支持，以确保将一个switch放在另一个switch内会导致错误或至少警告？
英文:
I'm using coroutines in C using several macros to simplify writing code. As it is known, these macros encapsulate the code inside a big switch statement, and use case __LINE__ to know where to return. The problem is that using a switch inside a coroutine will make it fail, because the case __LINE__ will belong to the inner switch, and not the outer one.
Is it possible, by passing a parameter to GCC, to "disable" nested switch support, thus ensuring that putting a switch inside another switch will return an error or, at least, a warning?
答案1
得分: 1
不，gcc不支持这个。
英文:
> Is it possible, by passing a parameter to GCC, to "disable" nested switch support, thus ensuring that putting a switch inside another switch will return an error or, at least, a warning?
No, gcc does not have support for this.
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