This is a pretty basic memory manager, which checks for memory leaks in a c++ programm. To use it, it must be inluded in the c++ project and the it must be compiled with de debug flag, no includes are needed.
It will then colled statistics during the execution of the program and print statistics at the end.
It will discover wrong deletes, leaked memory, the amount of leaked memory and total used memory.
Example:
---------------------------------------- Memory Statistics ---------------------------------------- # operator size address memory ---------------------------------------- 1 new[] 100 0x100103b80 100 2 new 4 0x100103c30 104 3 new[] 400 0x100103c80 504 4 new 8 0x100103e50 512 5 new[] 800 0x100103ea0 1312 6 new[] 2408 0x100803200 3720 7 delete 8 0x100103b80 3620 *** wrong delete *** 8 delete 8 0x100103e50 3612 9 delete[] 8 0x100103ea0 2812 10 delete[] 8 0x100103c80 2412 Memory Leaks ---------------------------------------- 2 new 4 0x100103c30 4 6 new[] 2408 0x100803200 2412 Memory Usage ---------------------------------------- No. of leaks: 2 Max used memory: 3720 Leaked memory: 2412
When a leak is detected, it would be helpfull to get the line number, where the memory was allocated.
To get the line numbers, the header MemMngr.h must be included in the according file.
It will then print the file name and line number, where the memory which was not deallocated, was allocated.
Example:
---------------------------------------- Memory Statistics ---------------------------------------- # operator size address memory ---------------------------------------- 1 new[] 100 0x100103b80 100 2 new 4 0x100103c30 104 3 new[] 400 0x100103c80 504 4 new 8 0x100103e50 512 5 new[] 800 0x100103ea0 1312 6 new[] 2408 0x100803200 3720 7 delete 8 0x100103b80 3620 *** wrong delete *** /Users/robin/Development/Xcode/MemoryManager/MemoryManager/main.cpp:32 8 delete 8 0x100103e50 3612 9 delete[] 8 0x100103ea0 2812 10 delete[] 8 0x100103c80 2412 Memory Leaks ---------------------------------------- 2 new 4 0x100103c30 4 /Users/robin/Development/Xcode/MemoryManager/MemoryManager/main.cpp:24 6 new[] 2408 0x100803200 2412 /Users/robin/Development/Xcode/MemoryManager/MemoryManager/main.cpp:29 Memory Usage ---------------------------------------- No. of leaks: 2 Max used memory: 3720 Leaked memory: 2412