Can You Catch a Stack Overflow Exception in C#?

The stack in the c# overflows abnormal capture

In C#, when the number of methods or functions is too large, the stack memory overflows and the program collapses, the stack overflow will occur. .NET Framework usually handles this abnormality automatically, but in some cases, developers may want to capture and deal with it by themselves.

Can the stack overflow abnormal?

From the .NET 2.0, it can only capture the stack overflowing abnormal only under certain circumstances:

Treatment environment:

CLR runs in the hosting environment, and the hosting environment clearly allows the treatment of stack overflow abnormalities.

The abnormalities caused by the user:
• The stack overflow abnormalities are thrown by the user code, not due to the actual stack overflow, such as simulating the stack overflow.
Dreatment of the stack overflow abnormality
• If you need to deal with abnormal stack overflow when you are allowed, you can use the TRY-CATCH block to surround the code that may be thrown out:

Other precautions

Multi-thread:

The stack overflow abnormalities are specific to the thread. Therefore, if they occur in non-main threads, the TRY-CATCH block of the main thread may not be able to capture abnormalities.

<code class="language-csharp">try
{
    // 可能抛出堆栈溢出异常的代码
}
catch (StackOverflowException ex)
{
    // 处理异常
}</code>

The client set of manual loading: If the abnormal code is thrown out of the program concentration of manual loading, the caller of the creation of the assembly instance may not be able to capture the abnormalities.

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