iarray_init - initialize iarray data structure

#include <iarray.h>

void iarray_init(array* x, size_t elemsize);

iarray x; int64 pos; t* p = iarray_init(&x,sizeof(element));

iarray_init initializes an iarray so that it can hold elements of size elemsize. iarray_init does not actually allocate anything, so it can not fail.

iarray_allocate(3), iarray_get(3), iarray_free(3),