如何在 gcc / mingw 中进行边界检查？
尝试过这个
int main(void){
int a[10]; a[20]=5；
}
-Wall -O2 main.c
它没有给我任何警告...
它是Windows（mingw）内的gcc，我无法检测到这种边界限制错误
如何告诉编译器检查它？ mingw可以做到吗？
谢谢
Having tried this
int main(void) {
int a[10];
a[20]=5;}
gcc -Wall -O2 main.c
It gives me no warning...
It's gcc within windows (mingw) and I am not able to detect this kind of boundary limit bug
how to tell compiler to check it? can mingw do it?
thanks
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有人尝试处理数组边界检查。默认情况下，santdard C99 没有提及强制数组边界，我相信很大程度上是因为它有更多的开销。
话虽这么说，您可以查看这样的网站，人们试图处理它：
http://williambader .com/bounds/example.html
There are attempts to deal with array bounds checking. By default, the santdard C99 says nothing about enforcing array bounds, I believe largely because it has more overhead.
That being said you can look at sites like this where people have tried to deal with it:
http://williambader.com/bounds/example.html
还有其他非编译工具可以使用静态分析来查找数组边界违规等错误。之前的SO问题讨论了其中的一些问题。请注意，如果您需要在可能限制您选择的 mingw 环境中运行。
There are other non-compiler tools that can use static analysis to find errors like array boundary violations. A previous SO question discusses some of them. Mind you, if you're needing to run in a mingw environment that may limit your choices.
这个问题很老了，但我想我在这里得到了另一个答案。即使您计划在 gcc 上进行完整构建，您也可以尝试 clang 编译器（例如，对于大型项目中的夜间构建）。效果很好。
一个例子是当我尝试访问索引 4 时的输出，其中数组大小声明为 4：
谢谢
卡贾尔
The question is quite old but I think another answer I got here. Even though if you plan to do a full build on gcc, you can give a try to clang compiler (e.g. for nightly builds in large projects). It worked quite well.
An example is the output when I tried accessing index 4 where the array size is declared as 4:
Thanks
Kajal