adah1972 / nvwa Goto Github PK
View Code? Open in Web Editor NEWMy small collection of C++ utilities
License: zlib License
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debug_new 相关问题
vs2017环境
代码中定义实现了
new相关
1：void* operator new(size_t size);
2：void* operator new[](size_t size);
3：void* operator new(size_t size, const char* file, unsigned int line)
4：void* operator new[](size_t size, const char* file, unsigned int line)
delete相关
1：void operator delete(void* p);
2：void operator delete[](void* p);
3：void* operator new(size_t size, const char* file, unsigned int line);
4：void* operator new[](size_t size, const char* file, unsigned int line);
宏定义了 #define new new(FILE,LINE)
所以new or new[] 的时候都会调用new 3 api 或者new 4 api
请问一下delete 有啥办法能让代码中delete obj 或者 delete[] obj的时候 自动调用 delete 3 api或者delete 4 api
MinGW Bug
Hi. In MinGW i have errors. Don't know how it fix. Maybe you have some ideas?
Thank you!
In file included from C:\Code\nvwa/debug_new.h:42,
from C:\Code\DllMain.cpp:4:
C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/ext/new_allocator.h: In member function '_Tp* __gnu_cxx::new_allocator<_Tp>::allocate(__gnu_cxx::new_allocator<_Tp>::size_type, const void*)':
C:\Code\nvwa/_nvwa.h:57:14: error: expected operator before 'nvwa'
#define NVWA nvwa
^~~~
In file included from C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/i686-w64-mingw32/bits/c++allocator.h:33,
from C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/bits/allocator.h:46,
from C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/string:41,
from C:\Code\MMM.h:3,
from C:\Code\DllMain.cpp:6:
C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/ext/new_allocator.h:111:37: error: expected ')' before 'nvwa'
return static_cast<_Tp*>(::operator new(__n * sizeof(_Tp)));
^
)
C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/ext/new_allocator.h:111:37: error: expected ';' before 'nvwa'
return static_cast<_Tp*>(::operator new(__n * sizeof(_Tp)));
^
;
C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/ext/new_allocator.h:111:60: error: expected type-specifier before ')' token
return static_cast<_Tp*>(::operator new(__n * sizeof(_Tp)));
^
In file included from C:\Code\nvwa/debug_new.h:42,
from C:\Code\DllMain.cpp:4:
C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/bits/stl_tempbuf.h: In function 'std::pair<_Tp*, int> std::get_temporary_buffer(std::ptrdiff_t)':
C:\Code\nvwa/_nvwa.h:57:14: error: expected operator before 'nvwa'
#define NVWA nvwa
^~~~
In file included from C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/memory:66,
from C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/thread:39,
from C:\Code\MMM.h:4,
from C:\Code\DllMain.cpp:6:
C:/mingw/mingw32/lib/gcc/i686-w64-mingw32/8.1.0/include/c++/bits/stl_tempbuf.h:94:45: error: expected ')' before 'nvwa'
_Tp* __tmp = static_cast<_Tp*>(::operator new(__len * sizeof(_Tp),
^
)
#ifdef _DEBUG
#include "nvwa/debug_new.h"
#endif
// On Init
#ifdef _DEBUG
fopen_s(&nvwa::new_output_fp, "c:\\tools\\leak.txt" , "w");
nvwa::new_autocheck_flag = false;
nvwa::new_verbose_flag = true;
#endif
// On destroy
#ifdef _DEBUG
nvwa::check_leaks();
#endifThousands of leaked objects from Dynamic Library?
Hello,
I am using debug_new.h for verifying memory leaks in a program of mine; and there were 2317 reported! with the message that was something like:
Leaked object at 0x7facced07e20 (size 48, 0x104c62c31)
After all those, a message said
*** 2317 leaks found
and then, I get 1642 messages saying
delete: freed 0x7facced38e00 (size 112, 115248 bytes still allocated)
So, I started looking for the source of leakage, and it seems to come from a Dynamic Library I am using. Since it is a closed API, I cannot really debug it. Is this normal behavior?
Any advice? I am not an advanced programmer, an I am not even sure what is going on.
Thanks!
functional里面new的使用没看懂
吴老师， 这个new是什么意思呢？是自定义的new吗？
Overloading new/delete is not working in MinGW
Probably it is not a nvwa problem. But nvwa affects too. So I hope you can help me.
In MinGW application operators new/delete will not be replaced globally. So can't be catched new/delete calls in shared libraries (.dll). new/delete overloading applies only for application .exe file. I tried to ask this on StackOverflow but don't get answer.
fc_queue疑问
您好 请教下 fc_queue之前的老接口是咋保证两个线程访问安全的？没太看懂
i love qinghua
static_assert does not constrain the type definition
关于debug_new的IBM中文网中已经找不到中文版本的链接了
hi，你好。我对内存泄漏感兴趣。
看了你debug_new这边文章，因为有些内容对我而言有点晦涩，想对比下中文版的文章再对比下。但是
关于的IBM中文网中已经找不到中文版本的链接了。
也想趁宝地再想问下业界有哪些更好的轮子吗？
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