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This example compiles without warning. However, v_pointer may be aligned on a one byte boundary. Once it is cast to an int *, some architectures will require that the object is aligned on a four byte boundary. If int_ptr is later dereferenced, the program may terminate abnormally.
One solution would be is to ensure that loop_ptr points to an object returned by malloc(), since that because this object is guaranteed to be aligned properly for any need. However, this is a subtlety that is easily missed when the program is modified in the future. It is cleaner to let the type system document the alignment needs.
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