How to initialize all members of an array to the same value?

Question

I have a large array in C (not C++ if that makes a difference). I want to initialize all members of the same value.

I could swear I

Answer 1

If you mean in parallel, I think the comma operator when used in conjunction with an expression can do that:

a[1]=1, a[2]=2, ..., a[indexSize]; 

or if you mean in a single construct, you could do that in a for loop:

for(int index = 0, value = 10; index < sizeof(array)/sizeof(array[0]); index++, value--)
  array[index] = index;

//Note the comma operator in an arguments list is not the parallel operator described above;

You can initialize an array decleration:

array[] = {1, 2, 3, 4, 5};

You can make a call to malloc/calloc/sbrk/alloca/etc to allocate a fixed region of storage to an object:

int *array = malloc(sizeof(int)*numberOfListElements/Indexes);

and access the members by:

*(array + index)

Etc.