如何在Visual C ++中添加一个条件断点 [英] How to add a conditional breakpoint in Visual C++

问题描述

我想在VC ++ Express 2005中为我的代码添加一个断点条件，以便断点只有在局部变量符合指定条件时才会触发。例如

I want to add a breakpoint condition to my code in VC++ Express 2005, so that the breakpoint only triggers if a local variable meets a specified criteria. e.g.

bool my_test(UIDList test_list) {
    foo(test_list);
    bar(test_list); // I have a breakpoint here, but only want it to trigger if test_list.Length() > 0
    print(test_list);
}

右键单击我的断点并选择Condition ...发现一个对话框，看起来做我想要的，但是我尝试输入到文本字段的任何东西导致以下错误：

Having right-clicked on my breakpoint and selected "Condition..." I have found a dialog that appears to do what I want, however anything I try typing into the text field results in the following error:

评估断点
条件：CX0052：错误：成员
函数不存在

Unable to evaluate the breakpoint condition: CX0052: Error: member function not present

，但我找不到我的答案。我希望在VC ++有经验的人可能能指出我的方向正确...

I tried the help documentation, but I couldn't find my answer. I'm hoping someone experienced in VC++ might be able to point me in the right direction...

我以前尝试升级到更新版本的VC ++ Express，但项目没有干净地进口。由于项目的复杂性和我当前的时间尺度，我现在不能考虑升级为解决方案。

I have previously tried upgrading to a more recent version of VC++ Express, but the project did not import cleanly. Due to the complexity of the project and my current time scales I can't consider upgrading as a solution at this point.

推荐答案

使用DebugBreak（）;函数：

use the DebugBreak(); function:

bool my_test(UIDList test_list) {
    foo(test_list);
    if (bar(test_list) /* or whatever check :) */) // I have a breakpoint here, but only want it to trigger if test_list.Length() > 0
        DebugBreak();
    }
    print(test_list);
}

或者你总是可以使用assert（expression）

Or you can always use assert(expression)

bool my_test(UIDList test_list) {
    foo(test_list);
    bar(test_list);
    assert(test_list.Length() > 0); // will break here
    print(test_list);
}

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