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| #include "grid/multigrid.h"
int main()
{
foreach_dimension()
periodic (right);
L0 = 2.*pi;
init_grid (8);
output_cells (stdout);
vector u[];
scalar s[];
foreach()
u.x[] = u.y[] = s[] = sin(x)*cos(y)*cos(z);
foreach()
foreach_neighbor(2) {
#if 0
fprintf (stderr, "%g %g %g %g %g %g\n", x, y, z, s[],
s[] - sin(x)*cos(y)*cos(z), u.y[]);
#else
assert (fabs (s[] - sin(x)*cos(y)*cos(z)) < 1e-14);
assert (fabs (u.x[] - sin(x)*cos(y)*cos(z)) < 1e-14);
assert (fabs (u.y[] - sin(x)*cos(y)*cos(z)) < 1e-14);
#endif
}
}
|
