2D Vector Causing Memory Leak

Asked Mar 06 '16 at 09:43

Active Mar 06 '16 at 10:25

Viewed 195 times

I am currently working on a 2d platformer game in C++. I have a class called Tilemap which stores the actual data for the tilemap in a 2D int vector. I noticed that when the player dies and I restart the level the process memory goes up by about 1 Megabyte. So I used Visual Leak Detector and it detected 114 memory leaks all originating from the initialization of my 2D int vector. Here's my code:

std::vector<std::vector<int>> tileMapArray;
tileMapArray.resize(mapSizeX);
for (int i = 0; i < mapSizeX; i++)
    tileMapArray[i].resize(mapSizeY);

Is there a way to fix this? Thanks in advance, TheKrane

EDIT: Those are the lines that VLD tells me the leaks occur at:

main.cpp(30):

Scene* currentLevel = new Level;

level.cpp(6):

Level::Level() : m_Tilemap("Data/testlevel.tmx", "Data/tilemap.png") {}

tilemap.cpp(36):

for (int i = 0; i < mapSizeX; i++)
    tileMapArray[i].resize(mapSizeY);

edited Mar 06 '16 at 10:09

asked Mar 06 '16 at 09:43

TheKrane

1

The problem is not with this snippet of code. – Ed Heal Mar 06 '16 at 09:49
Where else could it be? – TheKrane Mar 06 '16 at 09:58
Looks like you are not deleting `currentLevel`. VLD only tells you where the memory has been allocated. – Ed Heal Mar 06 '16 at 10:15
currentLevel is deleted properly – TheKrane Mar 06 '16 at 10:23
I think found the problem. Level dervives from a base class called Scene. Now only the destructor of the scene class is called when I delete Level. How can I solve this? – TheKrane Mar 06 '16 at 10:49
1

Use a virtual destructor – Jacques de Hooge Mar 06 '16 at 10:55
If I use a virtual destructor for the base class I get a Debug Assertion Error when I delete the Level object as described here: http://stackoverflow.com/questions/27768468/c-assertion-error-while-deleting-object – TheKrane Mar 06 '16 at 11:08

2D Vector Causing Memory Leak

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