how to detect memory leak

This article transferred from: http://www.ibm.com/developerworks/cn/linux/l-mleak/This paper discusses the memory leak detection method and its implementation of C + + program under Linux. These include the basic principles of new and delete in C + +, the implementation principles and methods of the memory detection subsystem, and advanced topics in

This article introduced a simple use of Linux system Tools Valgrind to detect memory leaks by applying Valgrind to discover the memory problems of Linux programs, This paper implements a tool for detecting memory leaks, including the principle description and implementation details. the　　 both articles are from the IBM

1. Development background: When programming with VC in Windows, we usually need to run the program in debug mode, and the debugger will print out memory information that is allocated on the heap while the program is running, including the code filename, line number, and memory size, when exiting the program. This feature is a built-in mechanism provided by the MFC Framework, encapsulated within its class s

A few days ago to see open source tools Mleaksfinder, decided to use in the company's projects to try, the effect is very good, the usage is very simple, directly to the project folder dragged to the project can be, depending on the project, I found a lot of memory leaks in the company project Place, in this summary: 1, block with reference to external objects must first __weak, otherwise easy to cause circular references; 2, the object of th

Flexible and freeCA major feature of the language, but this feature also has some unavoidable side effects, such as memory leakage. As we all know, memory leakage is complicated,ProgramDuring normal operation, you cannot see any exceptions, but it is exposed only when it runs for a long time or when a specific operation is repeated multiple times under a specific condition. Therefore,

Flexibility and freedom are a major feature of the C language, but this feature also brings unavoidable side effects, such as memory leakage. As we all know, the problem of Memory leakage is complicated. When a program runs normally, you cannot see any exceptions, but it runs for a long time or when a specific operation is repeated multiple times under a specific condition, it is exposed. Therefore,

1. Use _ crtdumpmemoryleaks () to check whether there is memory leak in program. With the help of _ crtdbg_map_alloc, it can output Memory Leak info with file line info for those memory block allocated by malloc (), while it wowould never print file line info for those allo

With the memory leak detection tool in VS, to enable memory leak detection, include the following statement in your program: #define _CRTDBG_MAP_ALLOC #include Their order of precedence cannot be changed. By including Crtdbg.h, the malloc and free functions are mapped to their "Debug" version _malloc_dbg and _free_d

Valgrind is a GPL 'd System for debugging and profiling Linux programs. with valgrind's tool suite you can automatically detect into memory management and threading bugs, avoiding hours of frustrating bug-hunting, making your programs more stable. you can also perform detailed profiling to help speed up your programs.Why shoshould you use valgrind? Valgrind will save you hours of debugging time. with valg

does not release the memory in the destructor, so a memory leak occurs only once.4. An implicit memory leak. The program keeps allocating memory while it is running, but it does not release m