memset(m_szCommand, 0, sizeof(m_szCommand));

[liuhaohit]

以下是出错信息：
Unhandled exception at 0x1023ec7a (msvcr80d.dll) in nevigation.exe: 0xC0000005: Access violation writing location 0xcccd69ac.


程序似乎运行到下面这个语句，我看程序的逻辑不会运行到这里的啊，怎么跑到这里来了。
memset(m_szCommand, 0, sizeof(m_szCommand));

m_szCommand 0xcccd69ac <Bad Ptr> char [1024]

[0] CXX0030: Error: expression cannot be evaluated
[1] CXX0030: Error: expression cannot be evaluated
...

this 0xcccccccc {m_bLogToFile=??? m_bDateTimeStampFile=??? m_szLogFile=0xccccccd2 <Bad Ptr> ...} CAuroraHandling * const

[用户 昵称]

m_szCommand是个指针吗？

[Cricketol]

m_szCommand是什么类型的?

[zgl7903]

看看这时的堆栈信息，可能很快就发现问题了

[liuhaohit]

这些是运行的信息，程序根本不可能运行到这些代码啊。
是不是我添加控件的时候，搞乱了，我删除了一些，又重新添加一些。
如果把上面这个注释掉，还会出来其他的类似错误Unhandled exception at 0x1023ec7a (msvcr80d.dll) in nevigation.exe: 0xC0000005: Access violation writing location 0xcccd69ac.

'nevigation.exe': Loaded 'D:\Exercise\VCtry\nevigation\debug\nevigation.exe', Symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\ntdll.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\kernel32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC80.DebugMFC_1fc8b3b9a1e18e3b_8.0.50727.762_x-ww_257740a4\mfc80d.dll', Symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC80.DebugCRT_1fc8b3b9a1e18e3b_8.0.50727.762_x-ww_5490cd9f\msvcr80d.dll', Symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\msvcrt.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\gdi32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\user32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\shlwapi.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\advapi32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\rpcrt4.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\comctl32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\oleaut32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\ole32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\imm32.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\lpk.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\usp10.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC80.MFCLOC_1fc8b3b9a1e18e3b_8.0.50727.762_x-ww_91481303\mfc80CHS.dll', Binary was not built with debug information.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\uxtheme.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\MSCTF.dll', No symbols loaded.
'nevigation.exe': Loaded 'C:\WINDOWS\system32\version.dll', No symbols loaded.
'nevigation.exe': Unloaded 'C:\WINDOWS\system32\version.dll'
'nevigation.exe': Loaded 'C:\WINDOWS\system32\MSCTFIME.IME', No symbols loaded.
First-chance exception at 0x1023ec7a (msvcr80d.dll) in nevigation.exe: 0xC0000005: Access violation writing location 0xcccd69ac.
Unhandled exception at 0x1023ec7a (msvcr80d.dll) in nevigation.exe: 0xC0000005: Access violation writing location 0xcccd69ac.
The program '[196] nevigation.exe: Native' has exited with code 0 (0x0).

[scq2099yt]

内存泄露

[liuhaohit]

什么原因造成的呢？
我就在原先程序上加了一些东西，原来不这样子。
应该怎么查呢？

[菜牛]

你这个m_szCommand什么类型？除非是数组，否则出错。
至于是否运行到这个语句，我想不能自己想，单步调试运行一下，或者设断点。
另外调试输出信息正确无误。

[cnzdgs]

this指针为初始化，看你这段代码所在的函数是在那里调用的，你应该是定义了一个类指针变量，然后用->来调用这个函数的，但类指针变量未初始化。