When initializing a char array, is the remaining space zero filled or uninitialized?

Question

Given

char foo[1024] = \"bar\";

This will initialize foo to contain \'b\',\'a\',\'r\',0 . Is the remaining 1020 characters zero initialized

Answer 1

Yes, the uninitialized array elements will be zeroes. Example:

If the initializer supplies too few elements, 0 is assumed for the remaining array elements:

int v5[8] = { 1 , 2 , 3 , 4 };

is equivalent to

int v5[] = { 1 , 2 , 3 , 4 , 0 , 0 , 0 , 0 };