src/apps/testapps/testPolygonToCells.c [68:97]:
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static bool isTransmeridianCell(H3Index h) {
    CellBoundary bndry;
    H3_EXPORT(cellToBoundary)(h, &bndry);

    double minLng = M_PI, maxLng = -M_PI;
    for (int i = 0; i < bndry.numVerts; i++) {
        if (bndry.verts[i].lng < minLng) minLng = bndry.verts[i].lng;
        if (bndry.verts[i].lng > maxLng) maxLng = bndry.verts[i].lng;
    }

    return maxLng - minLng > M_PI - (M_PI / 4);
}

static void fillIndex_assertions(H3Index h) {
    if (isTransmeridianCell(h)) {
        // TODO: these do not work correctly
        return;
    }

    int currentRes = H3_EXPORT(getResolution)(h);
    // TODO: Not testing more than one depth because the assertions fail.
    for (int nextRes = currentRes; nextRes <= currentRes + 1; nextRes++) {
        CellBoundary bndry;
        H3_EXPORT(cellToBoundary)(h, &bndry);
        GeoPolygon polygon = {
            .geoloop = {.numVerts = bndry.numVerts, .verts = bndry.verts},
            .numHoles = 0,
            .holes = 0};

        int64_t polygonToCellsSize;
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src/apps/testapps/testPolygonToCellsExperimental.c [81:110]:
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static bool isTransmeridianCell(H3Index h) {
    CellBoundary bndry;
    H3_EXPORT(cellToBoundary)(h, &bndry);

    double minLng = M_PI, maxLng = -M_PI;
    for (int i = 0; i < bndry.numVerts; i++) {
        if (bndry.verts[i].lng < minLng) minLng = bndry.verts[i].lng;
        if (bndry.verts[i].lng > maxLng) maxLng = bndry.verts[i].lng;
    }

    return maxLng - minLng > M_PI - (M_PI / 4);
}

static void fillIndex_assertions(H3Index h) {
    if (isTransmeridianCell(h)) {
        // TODO: these do not work correctly
        return;
    }

    int currentRes = H3_EXPORT(getResolution)(h);
    // TODO: Not testing more than one depth because the assertions fail.
    for (int nextRes = currentRes; nextRes <= currentRes + 1; nextRes++) {
        CellBoundary bndry;
        H3_EXPORT(cellToBoundary)(h, &bndry);
        GeoPolygon polygon = {
            .geoloop = {.numVerts = bndry.numVerts, .verts = bndry.verts},
            .numHoles = 0,
            .holes = 0};

        int64_t polygonToCellsSize;
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