How to align a pointer in C

Question

Is there a way to align a pointer in C? Suppose I\'m writing data to an array stack (so the pointer goes downward) and I want the next data I write to be 4-aligned so the da

Answer 1

Based on tricks learned elsewhere and one from reading @par answer apparently all I needed for my special case which is for a 32-bit like machine is ((size - 1) | 3) + 1 which acts like this and thought might be useful for other,

for (size_t size = 0; size < 20; ++size) printf("%d\n", ((size - 1) | 3) + 1);

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