void Mapgen::generateOre(Ore *ore, u32 blockseed, v3s16 nmin, v3s16 nmax) {
    if (nmin.Y > ore->height_max || nmax.Y < ore->height_min)
        return;

    MapNode n_ore(ore->ore);
    PseudoRandom pr(blockseed);
    int ymin   = MYMAX(nmin.Y, ore->height_min);
    int ymax   = MYMIN(nmax.Y, ore->height_max);
    int volume = (nmax.X - nmin.X + 1) *
                 (nmax.Y - nmin.Y + 1) *
                 (nmax.Z - nmin.Z + 1);
    int csize     = ore->clust_size;
    int orechance = (csize * csize * csize) / ore->clust_ores;
    int nclusters = volume / ore->clust_scarcity;

    for (int i = 0; i != nclusters; i++) {
        int x0 = pr.range(nmin.X, nmax.X - csize + 1);
        int y0 = pr.range(ymin,   ymax   - csize + 1);
        int z0 = pr.range(nmin.Z, nmax.Z - csize + 1);

        if (ore->np && NoisePerlin3D(&ore->np, x0, y0, z0, seed) > ore->nthresh)
            continue;

        for (int z1 = 0; z1 != csize; z1++) {
            for (int y1 = 0; y1 != csize; y1++) {
                for (int x1 = 0; x1 != csize; x1++) {
                    if (pr.range(1, orechance) == 1) {
                        int i = vm->m_area.index(x0 + x1, y0 + y1, z0 + z1);
                        if (vm->m_data[i].getContent() == ore->wherein)
                            vm->m_data[i] = n_ore;
                    }
                }
            }
        }
    }
}



creates this error:


error: no match for 'operator&&' in 'ore->Ore::np && ((ore->Ore::np.NoiseParams::offset + (ore->Ore::np.NoiseParams::scale * noise3d_perlin((#'float_expr' not supported by dump_expr#<expression error> / ore->Ore::np.NoiseParams::spread.irr::core::vector3d<float>::X), (#'float_expr' not supported by dump_expr#<expression error> / ore->Ore::np.NoiseParams::spread.irr::core::vector3d<float>::Y), (#'float_expr' not supported by dump_expr#<expression error> / ore->Ore::np.NoiseParams::spread.irr::core::vector3d<float>::Z), (((Mapgen*)this)->Mapgen::seed + ore->Ore::np.NoiseParams::seed), ore->Ore::np.NoiseParams::octaves, ore->Ore::np.NoiseParams::persist))) > ore->Ore::nthresh)'|