Memset内存溢出

Question

memset(outsideWallHeightMap, 0, sizeof(outsideWallHeightMap[0][0]) * CHUNK_SIZE_MULT * ITEM_CHUNK_SIZE_MULT);


quint8 outsideWallHeightMap[INSIDE_ITEM_CHUNK_SIZE_MULT][CHUNK_SIZE_MULT];

#define ITEM_MAP_SIZE 128
#define CHUNK_SIZE 8
#define CHUNK_SIZE_MULT (CHUNK_SIZE*CHUNK_SIZE)

#define INSIDE_ITEM_CHUNK_SIZE (INSIDE_ITEM_MAP_SIZE/CHUNK_SIZE)

#define INSIDE_ITEM_CHUNK_SIZE_MULT (INSIDE_ITEM_CHUNK_SIZE*INSIDE_ITEM_CHUNK_SIZE)

我不知道为什么这完全破坏了我的记忆！我以前和quint8有麻烦，我希望不是那样的..。

任何洞察力都会很棒！

Answer 1

难道不应该是

memset(outsideWallHeightMap, 0, sizeof(outsideWallHeightMap[0][0]) * CHUNK_SIZE_MULT *INSIDE_ITEM_CHUNK_SIZE_MULT));

或者更简单

memset(outsideWallHeightMap, 0, sizeof(outsideWallHeightMap));

Answer 2

您也可以通过以下方式将所有内容初始化为0：

quint8 outsideWallHeightMap[INSIDE_ITEM_CHUNK_SIZE_MULT][CHUNK_SIZE_MULT] = {{0}};