如何在Visual Studio 2008中进行调试

Question

我不断收到外部库cpp文件中的错误的这些行号，我无法知道我的代码中哪部分会导致此错误。有时它甚至会显示汇编代码块在哪里崩溃...

如何获取我自己的代码导致此错误的行？或者至少有一个线索，我的代码的一部分，使这次崩溃...

有时它甚至不告诉任何行号，我真的不明白这种调试模式如何工作。我使用了应用程序验证器，并且它有时会给出一些行号。它看起来像随机告诉我这些东西......我该如何解决这个问题？

这是我所得到的：在这行代码

First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dd4c.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dc50.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dc50.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dd48.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012d9a8.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dc6c.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dcd0.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dabc.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dabc.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dabc.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012db5c.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dabc.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dc30.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012db48.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012db64.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012db5c.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012db48.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012db04.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dabc.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012da04.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dc30.. 
First-chance exception at 0x7c812aeb in test.exe: Microsoft C++ exception: std::bad_alloc at memory location 0x0012dcd0.. 

Answer 1

使用断点要“暂停”的程序执行。这样你就可以看到程序状态（变量的值等）。

这里有一系列关于如何安装所有东西以获得调试的教程。

• The Concepts
• Debugger Setup
• Using Breakpoints
• Running the program in debug mode

Answer 2

的MSVC调试器是非常强大的。你付出的代价是复杂的。

您可以告诉调试器打破任何未处理的异常。这是默认关闭的。在你的情况下，你想打破第一次机会的例外。执行此操作：

转到调试>例外... 在出现的对话框中，选中“C++异常”和“Win32异常”旁边的框。

运行你的程序。发生这些异常时应该中断。

请记住，在MFC内部广泛使用第一次机会异常来在组件之间进行通信。这些都不是错误。但是你会在输出窗口中看到它们。如果他们没有得到处理，那么当它成为一个问题，你必须解决。