valgrind

I have implemented a compression algorithm (using huffman coding) which uses a priority queue of nodes (a struct i defined). Now, when i just run the code in linux or in visual studio, everything works fine. When I check for memory leaks in visual studio, none are given. The problem now is, when I use valgrind to analyse my program, it terminates with signal 11 (sigsegv). The first error encountered is an 'invalid read of size 4' in the method delete min. Other errors after that are: Adress is 0 bytes inside a block of size 453 freed, invalid write of size 4, invalid free,delete or realloc.

I'm quite worry because I wrote a little application and it seems that there is a memory leak if I believe valgrind (What I actually do): ==9321== 251 bytes in 7 blocks are definitely lost in loss record 1 of 1 ==9321== at 0x402569A: operator new(unsigned int) (vg_replace_malloc.c:255) ==9321== by 0x40D3D05: std::string::_Rep::_S_create(unsigned int, unsigned int, std::allocator<char> const&) (in /usr/lib/libstdc++.so.6.0.13) ==9321== by 0x40D4977: std::string::_Rep::_M_clone(std::allocator<char> const&, unsigned int) (in /usr/lib/libstdc++.so.6.0.13) ==9321== by 0x40D57AC: std::string:

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have just receive an output from valgrind that I do not quite understand: ==20290== Invalid read of size 1 ==20290== at 0x8C1D678: ??? ==20290== by 0x5D74C47: ??? ==20290== Address 0xee818c7d is not stack'd, malloc'd or (recently) free'd ==20290== ==20290== ==20290== Process terminating with default action of signal 11 (SIGSEGV) ==20290== Access not within mapped region at address 0xEE818C7D ==20290== at 0x8C1D678: ??? ==20290== by 0x5D74C47: ??? ==20290== If you believe this happened as a result of a stack ==20290== overflow in your

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I've been searching for the last week trying to find an answer to this question. How do I start an Android app with valgrind? I know I can start an app with the 'am' command, but it starts the app and exits. I'm writing an app that uses the NDK for native C code, and I need to check it for suspected memory errors. Edit: I've learned a little more. You can "wrap" an app with a shell script. Here's the shell script I'm using: #!/system/bin/sh VGPARAMS='--error-limit=no' export TMPDIR=/data/data/com.starlon.froyvisuals exec /data/local/Inst/bin

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I have a small doubt regarding profiling applications which never exit until we manually reboot the machine. I used tools like valgrind which talks about memory leaks or bloating of any application which exits after sometime. But is there any tool which can be used to tell about memory consumption, bloating, overhead created by the application at various stages if possible? NOTE: I am more intrested to know about apps which dont exit ... If an app exits I can use tools like valgrind .. 回答1: I'd consider adding a graceful exit from the