在C中初始化2D / 3D阵列的简便方法？

Question

我想知道是否有一种简化方法来初始化C中的2D或3D数组，类似于以下语法：

int array[1024] = {[0 ... 1023] = 5};

Answer 1

The initialization you use isn't standard C, it's a GCC extension (Designated Initializers) .

To initialize a 3d array, use:

int array[10][10][10] = {[0 ... 9] [0 ... 9] [0 ... 9] = 42};

Demo .