CheckVirtualMods(XkbDescRec * xkb,
                 xkbSetMapReq * req, CARD8 **wireRtrn, int *errorRtrn)
{
    register CARD8 *wire = *wireRtrn;
    register unsigned i, nMods, bit;

    if (((req->present & XkbVirtualModsMask) == 0) || (req->virtualMods == 0))
        return 1;
    for (i = nMods = 0, bit = 1; i < XkbNumVirtualMods; i++, bit <<= 1) {
        if (req->virtualMods & bit)
            nMods++;
    }
    *wireRtrn = (wire + XkbPaddedSize(nMods));
    return 1;
}
Unknown