View Compilation Error

0_0_20432715_5432.cpp:10:11: error: size of array 'cpool' has non-integral type 'double'
 }cpool[1e7], *ctail=cpool, *croot[N];
           ^
0_0_20432715_5432.cpp:14:11: error: size of array 'dpool' has non-integral type 'double'
 }dpool[1e7], *dtail=dpool, *droot[N];
           ^