出现内存泄漏错误,VC output窗口显示信息如下:
oaded 'ntdll.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\kernel32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\ws2_32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msvcrt.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\ws2help.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\advapi32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\rpcrt4.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\secur32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFC42D.DLL'
Loaded symbols for 'C:\WINDOWS\system32\MSVCRTD.DLL'
Loaded 'C:\WINDOWS\system32\gdi32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\user32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFCO42D.DLL'
Loaded 'C:\WINDOWS\system32\ole32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\oleaut32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFCN42D.DLL'
Loaded 'C:\WINDOWS\system32\imm32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\lpk.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\usp10.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\mfc42loc.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\wsock32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\uxtheme.dll', no matching symbolic information found.
Loaded 'D:\360safe\safemon\safemon.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\shell32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\shlwapi.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\version.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msimg32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msvcp60.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\wininet.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\crypt32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msasn1.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\psapi.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\urlmon.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\comctl32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\MSCTF.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\MSCTFIME.IME', no matching symbolic information found.
Detected memory leaks!
Dumping objects ->
strcore.cpp(118) : {62} normal block at 0x003D4720, 45 bytes long.
Data: < > 01 00 00 00 04 00 00 00 20 00 00 00 CB CE CC E5
{61} normal block at 0x003D46D8, 8 bytes long.
Data: < > FF FF FF FF CD CD CD CD
oleinit.cpp(86) : {59} client block at 0x003D45C8, subtype 0, 68 bytes long.
a CCmdTarget object at $003D45C8, 68 bytes long
{53} client block at 0x003D2A38, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D2A38, 64 bytes long
{51} client block at 0x003D28E8, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D28E8, 64 bytes long
{46} client block at 0x003D2720, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D2720, 64 bytes long
{44} client block at 0x003D25D0, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D25D0, 64 bytes long
Object dump complete.
Detected memory leaks!
Dumping objects ->
strcore.cpp(118) : {78} normal block at 0x003D4DF8, 45 bytes long.
Data: < Syst> 01 00 00 00 06 00 00 00 20 00 00 00 53 79 73 74
{77} normal block at 0x003D4DA0, 28 bytes long.
Data: < > FF FF FF FF CD CD CD CD CD CD CD CD CD CD CD CD
strcore.cpp(118) : {62} normal block at 0x003D4720, 45 bytes long.
Data: < > 01 00 00 00 04 00 00 00 20 00 00 00 CB CE CC E5
{61} normal block at 0x003D46D8, 8 bytes long.
Data: < > FF FF FF FF CD CD CD CD
oleinit.cpp(86) : {59} client block at 0x003D45C8, subtype 0, 68 bytes long.
a CCmdTarget object at $003D45C8, 68 bytes long
Object dump complete.
The thread 0xBDC has exited with code 3 (0x3).
The program 'G:\6.21\默认轮询\Debug\NMS.exe' has exited with code 3 (0x3).
该如何解决?本人菜鸟,请给个思路,谢谢。
oaded 'ntdll.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\kernel32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\ws2_32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msvcrt.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\ws2help.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\advapi32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\rpcrt4.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\secur32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFC42D.DLL'
Loaded symbols for 'C:\WINDOWS\system32\MSVCRTD.DLL'
Loaded 'C:\WINDOWS\system32\gdi32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\user32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFCO42D.DLL'
Loaded 'C:\WINDOWS\system32\ole32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\oleaut32.dll', no matching symbolic information found.
Loaded symbols for 'C:\WINDOWS\system32\MFCN42D.DLL'
Loaded 'C:\WINDOWS\system32\imm32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\lpk.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\usp10.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\mfc42loc.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\wsock32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\uxtheme.dll', no matching symbolic information found.
Loaded 'D:\360safe\safemon\safemon.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\shell32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\shlwapi.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\version.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msimg32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msvcp60.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\wininet.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\crypt32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\msasn1.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\psapi.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\urlmon.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.Windows.Common-Controls_6595b64144ccf1df_6.0.2600.2180_x-ww_a84f1ff9\comctl32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\comctl32.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\MSCTF.dll', no matching symbolic information found.
Loaded 'C:\WINDOWS\system32\MSCTFIME.IME', no matching symbolic information found.
Detected memory leaks!
Dumping objects ->
strcore.cpp(118) : {62} normal block at 0x003D4720, 45 bytes long.
Data: < > 01 00 00 00 04 00 00 00 20 00 00 00 CB CE CC E5
{61} normal block at 0x003D46D8, 8 bytes long.
Data: < > FF FF FF FF CD CD CD CD
oleinit.cpp(86) : {59} client block at 0x003D45C8, subtype 0, 68 bytes long.
a CCmdTarget object at $003D45C8, 68 bytes long
{53} client block at 0x003D2A38, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D2A38, 64 bytes long
{51} client block at 0x003D28E8, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D28E8, 64 bytes long
{46} client block at 0x003D2720, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D2720, 64 bytes long
{44} client block at 0x003D25D0, subtype 0, 64 bytes long.
a CDynLinkLibrary object at $003D25D0, 64 bytes long
Object dump complete.
Detected memory leaks!
Dumping objects ->
strcore.cpp(118) : {78} normal block at 0x003D4DF8, 45 bytes long.
Data: < Syst> 01 00 00 00 06 00 00 00 20 00 00 00 53 79 73 74
{77} normal block at 0x003D4DA0, 28 bytes long.
Data: < > FF FF FF FF CD CD CD CD CD CD CD CD CD CD CD CD
strcore.cpp(118) : {62} normal block at 0x003D4720, 45 bytes long.
Data: < > 01 00 00 00 04 00 00 00 20 00 00 00 CB CE CC E5
{61} normal block at 0x003D46D8, 8 bytes long.
Data: < > FF FF FF FF CD CD CD CD
oleinit.cpp(86) : {59} client block at 0x003D45C8, subtype 0, 68 bytes long.
a CCmdTarget object at $003D45C8, 68 bytes long
Object dump complete.
The thread 0xBDC has exited with code 3 (0x3).
The program 'G:\6.21\默认轮询\Debug\NMS.exe' has exited with code 3 (0x3).
该如何解决?本人菜鸟,请给个思路,谢谢。
2009-12-21 20:19技术原理:
检测内存泄漏的主要工具是调试器和 CRT 调试堆函数。若要启用调试堆函数,请在程序中包括以下语句: #define CRTDBG_MAP_ALLOC #include <stdlib.h> #include <crtdbg.h> 注意 #include 语句必须采用上文所示顺序。如果更改了顺序,所使用的函数可能无法正确工作。 通过包括 crtdbg.h,将 malloc 和 free 函数映射到其“Debug”版本_malloc_dbg 和_free_dbg,这些函数将跟踪内存分配和释放。此映射只在调试版本(在其中定义了 _DEBUG)中发生。发布版本使用普通的 malloc 和 free 函数。 #define 语句将 CRT 堆函数的基版本映射到对应的“Debug”版本。并非绝对需要该语句,但如果没有该语句,内存泄漏转储包含的有用信息将较少。 在添加了上面所示语句之后,可以通过在程序中包括以下语句来转储内存泄漏信息: _CrtDumpMemoryLeaks(); 当在调试器下运行程序时,_CrtDumpMemoryLeaks 将在“输出”窗口中显示内存泄漏信息。内存泄漏信息如下所示: Detected memory leaks! Dumping objects -> X:XX.cpp(40) : {1875} normal block at 0x00780E80, 78600 bytes long. Data: < > CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD Object dump complete. 如果不使用 #define _CRTDBG_MAP_ALLOC 语句,内存泄漏转储如下所示: Detected memory leaks! Dumping objects -> {1875} normal block at 0x00780E80, 76800 bytes long. Data: < > CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD Object dump complete. 未定义 _CRTDBG_MAP_ALLOC 时,所显示的会是: 内存分配编号(在大括号内)。
块类型(普通、客户端或 CRT)。
十六进制形式的内存位置。
以字节为单位的块大小。
前 16 字节的内容(亦为十六进制)。
定义了 _CRTDBG_MAP_ALLOC 时,还会显示在其中分配泄漏的内存的文件。文件名后括号中的数字(本示例中为 40)是该文件内的行号。 转到源文件中分配内存的行 在“输出”窗口中双击包含文件名和行号的行。
-或- 在“输出”窗口中选择包含文件名和行号的行,然后按 F4 键。
_CrtSetDbgFlag
如果程序总在同一位置退出,则调用 _CrtDumpMemoryLeaks 足够方便,但如果程序可以从多个位置退出该怎么办呢?不要在每个可能的出口放置一个对 _CrtDumpMemoryLeaks 的调用,可以在程序开始包括以下调用: _CrtSetDbgFlag ( _CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF ); 该语句在程序退出时自动调用 _CrtDumpMemoryLeaks。必须同时设置 _CRTDBG_ALLOC_MEM_DF 和 _CRTDBG_LEAK_CHECK_DF 两个位域,如上所示。只需要按F5,在调试状态下运行,程序退出后在“输出窗口”可以看到有无内存泄露。如果出现 Detected memory leaks! Dumping objects -> 就有内存泄露。 确定内存泄露的地方
根据内存泄露的报告,有两种消除的方法: 第一种比较简单,就是已经把内存泄露映射到源文件的,可以直接在“输出”窗口中双击包含文件名和行号的行。例如 Detected memory leaks! Dumping objects -> X:XX.cpp(20) : {1875} normal block at 0x00780E80, 76800 bytes long. Data: < > CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD Object dump complete. X:XX.cpp(40)就是源文件名称和行号。 第二种比较麻烦,就是不能映射到源文件的,只有内存分配块号。 Detected memory leaks! Dumping objects -> {1875} normal block at 0x00780E80, 76800 bytes long. Data: < > CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD CD Object dump complete. 这种情况我采用一种“试探法”。由于内存分配的块号不是固定不变的,而是每次运行都是变化的,所以跟踪起来很麻烦。但是我发现虽然内存分配的块号是变化的,但是变化的块号却总是那几个,也就是说多运行几次,内存分配的块号很可能会重复。因此这就是“试探法”的基础。 1. 先在调试状态下运行几次程序,观察内存分配的块号是哪几个值; 2.选择出现次数最多的块号来设断点,在代码中设置内存分配断点: 添加如下一行(对于第 1875 个内存分配): _crtBreakAlloc = 1875; 或者,可以使用具有同样效果的 _CrtSetBreakAlloc 函数: _CrtSetBreakAlloc(1875); //我把这句放在了InitiaDialog里面3. 在调试状态下运行序,在断点停下时,打开“调用堆栈”窗口,找到对应的源代码处; 4. 退出程序,观察“输出窗口”的内存泄露报告,看实际内存分配的块号是不是和预设值相同,如果相同,就找到了;如果不同,就重复步骤3,直到相同。 5. 最后就是根据具体情况,在适当的位置释放所分配的内存。
直接DEBUG_NEW就可以了
效果一样
strcore.cpp(118) : {62} normal block at 0x003D4720, 45 bytes long.直接点击 的话会定位到当前位置的,然后考虑哪儿内存没有释放就可以了
点击弹出对话框strcore.cpp Cannot open file.File not found.