Question

在调试我的代码时，gdb捕获用throw抛出的常规异常（例如除以零）而不是自定义异常。

我希望vscode在发生异常的地方跳转，以便我进行调查。而是，异常导致应用程序终止，调试器关闭。

我用一些伪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，请参见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
        }
    ],
    ...
}

Windows上的VSCode：gdb不会在“抛出”时中断，但会在常规异常时中断

1 个答案: