def make_declare(loop_orders, dtypes, sub):
 decl = ''
 for (i, (loop_order, dtype)) in enumerate(zip(loop_orders, dtypes)):
  var = sub[('lv%i' % i)]
  decl += ('\n        %(dtype)s* %(var)s_iter;\n        ' % locals())
  for (j, value) in enumerate(loop_order):
   if (value != 'x'):
    decl += ('\n                npy_intp %(var)s_n%(value)i;\n                ssize_t %(var)s_stride%(value)i;\n                int %(var)s_jump%(value)i_%(j)i;\n                ' % locals())
   else:
    decl += ('\n                int %(var)s_jump%(value)s_%(j)i;\n                ' % locals())
 return decl

def make_declare ( loop_orders , dtypes , sub ) : decl = '' for ( i , ( loop_order , dtype ) ) in enumerate ( zip ( loop_orders , dtypes ) ) : var = sub [ ( 'lv%i' % i ) ] decl += ( '\n        %(dtype)s* %(var)s_iter;\n        ' % locals ( ) ) for ( j , value ) in enumerate ( loop_order ) : if ( value != 'x' ) : decl += ( '\n                npy_intp %(var)s_n%(value)i;\n                ssize_t %(var)s_stride%(value)i;\n                int %(var)s_jump%(value)i_%(j)i;\n                ' % locals ( ) ) else : decl += ( '\n                int %(var)s_jump%(value)s_%(j)i;\n                ' % locals ( ) ) return decl
produce code to declare all necessary variables .