Hi.
Suppose I have some array of double "mymatrix[10][10]" ,
which I pass to some library function (namely to the Lapack's DORMQR).
That function modifies the contents of the array "mymatrix" during
it's work (uses it as a workspace), but always at the end of the
call restores it's contents.
Question: May I mark "mymatrix" as "const" ? i.e.
void my_fuction( const double mymatrix[10][10] ) {
call_to_fortran_DORMQR( ..., mymatrix, ...);
}
In such a way I hint to the gcc's optimizer that the contents
of the matrix are read only in the scope of "my_function",
but actually they will be changed and than restored.
Can it create trouble with the optimization, i.e. that the resulting
executable will produce incorrect results ?
Thank you,
Regards,
Dima.
