I posted this to the gcc-help mailing list, but got no reply there. So
here are the questions:
First question:
Is it possible to use the __restrict__ qualifier on a member
variable, like in the example below?
class array {
double * __restrict__ data;
...
...
};
The compiler gives no error message, but does declaring 'data' as
a __restrict__ed pointer have any effect on functions that accept
references to 'array's as arguments?
The gcc documentation only mentions using __restrict__ on function
arguments or member functions, [1] and in that case only that single
function is affected which has the declaration.
Second question:
If this does not work, how can I achieve the same effect as with
void fun(double * __restrict__ arr1, double * __restrict__ arr2)
{ ... }
if I use array & instead of double *? (The problem is that the class
'array' does not contain the actual data, just a pointer to it.)
[1]
http://gcc.gnu.org/onlinedocs/gcc-4.1.2/gcc/Restricted-Pointers.html#index-restricted-pointers-2455
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