35     auto a = static_cast<ProgramType>(ia);  in isCompatibleProgramType()  local
38     if (a == b) return true;  in isCompatibleProgramType()
39     if (a == ProgramType::AM && b == ProgramType::AM_HD) return true;  in isCompatibleProgramType()
40     if (a == ProgramType::AM_HD && b == ProgramType::AM) return true;  in isCompatibleProgramType()
41     if (a == ProgramType::FM && b == ProgramType::FM_HD) return true;  in isCompatibleProgramType()
42     if (a == ProgramType::FM_HD && b == ProgramType::FM) return true;  in isCompatibleProgramType()
46 static bool bothHaveId(const ProgramSelector& a, const ProgramSelector& b,  in bothHaveId()  argument
48     return hasId(a, type) && hasId(b, type);  in bothHaveId()
51 static bool anyHaveId(const ProgramSelector& a, const ProgramSelector& b,  in anyHaveId()  argument
53     return hasId(a, type) || hasId(b, type);  in anyHaveId()
56 static bool haveEqualIds(const ProgramSelector& a, const ProgramSelector& b,  in haveEqualIds()  argument
58     if (!bothHaveId(a, b, type)) return false;  in haveEqualIds()
62     return getId(a, type) == getId(b, type);  in haveEqualIds()
65 bool tunesTo(const ProgramSelector& a, const ProgramSelector& b) {  in tunesTo()  argument
66     if (!isCompatibleProgramType(a.programType, b.programType)) return false;  in tunesTo()
68     auto type = getType(a);  in tunesTo()
75             if (haveEqualIds(a, b, IdentifierType::HD_STATION_ID_EXT)) return true;  in tunesTo()
78             if (anyHaveId(a, b, IdentifierType::HD_SUBCHANNEL)) {  in tunesTo()
80                 auto aCh = getId(a, IdentifierType::HD_SUBCHANNEL, 0);  in tunesTo()
85             if (haveEqualIds(a, b, IdentifierType::RDS_PI)) return true;  in tunesTo()
87             return haveEqualIds(a, b, IdentifierType::AMFM_FREQUENCY);  in tunesTo()
89             return haveEqualIds(a, b, IdentifierType::DAB_SIDECC);  in tunesTo()
91             return haveEqualIds(a, b, IdentifierType::DRMO_SERVICE_ID);  in tunesTo()
93             if (anyHaveId(a, b, IdentifierType::SXM_SERVICE_ID)) {  in tunesTo()
94                 return haveEqualIds(a, b, IdentifierType::SXM_SERVICE_ID);  in tunesTo()
96             return haveEqualIds(a, b, IdentifierType::SXM_CHANNEL);  in tunesTo()