是否可以将指针重新解释为带尺寸的数组引用？

Question

假设我有一些指针,我想将其重新解释为静态维数组引用:

double *p;
double (&r)[4] = ?(p); // some construct?

// clarify
template< size_t N> void function(double (&a)[N]);
...
 double *p;
function(p); // this will not work.
//  I would like to cast p as to make it appear as  double[N]

有可能这样做吗？我该怎么做？

Answer 1

它很丑:

double arr[4];
double* d = arr;

double (&a)[4] = *static_cast<double(*)[4]>(static_cast<void*>(d));

确保数组类型与指针最初的来源匹配.