Windows 上的 VSCode：gdb 不会因“抛出”而中断，但会因常规异常而中断

Question

在调试我的代码时，gdb 会捕获常规异常（例如除以零），但不会捕获自定义异常，并使用 throw 抛出。

我希望 vscode 会跳转到引发异常的位置，因此我可以进行调查。相反，该异常会导致应用程序终止并关闭调试器。

我用一些虚拟代码对其进行了测试：

编译为：g++ -g main.cpp -o test.exe

#include <stdexcept>
#include <iostream>

void test()
{
    throw std::invalid_argument( "received negative value" );
}

int main(int argc, char const *argv[]) {
    std::cin.get();

    // int c = 1 / 0;
    test();

    std::cout << "v";

    std::cin.get();
    return 0;
}

输出：

terminate called after throwing an instance of 'std::invalid_argument'
  what():  received negative value

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

---

我的环境：

• Windows 7 64 位
• VSCode 1.40.2
• MinGW

launch.json

        {
            "type": "cppdbg",
            "request": "launch",
            "name": "Launch Program",
            "program": "${workspaceRoot}/test.exe",
            "cwd": "${workspaceRoot}",
            "miDebuggerPath": "C:/MinGW/bin/gdb.exe",
            "MIMode": "gdb",
            "preLaunchTask": "Compile",
            "externalConsole": true
        }

Answer 1

有关catch 的更多信息，请参阅https://sourceware.org/gdb/onlinedocs/gdb/Set-Catchpoints.html#Set-Catchpoints

添加到launch.json:

{
    ...
    "setupCommands": [
        /*{
            "description": "Enable pretty-printing for gdb",
            "text": "-enable-pretty-printing",
            "ignoreFailures": true
        },*/
        {
            "description": "Enable break on all exceptions",
            "text": "catch throw",
            "ignoreFailures": true
        }
    ],
    ...
}