getting wrong results

[icyfox168168]

get IPPROTO_IGMP|IPPROTO_IPV4 why IPPROTO_TCP ？

IPPROTO_IGMP|IPPROTO_IPV4 = 6

IPPROTO_TCP value: 6

auto f3 = magic_enum::enum_cast(Protocol); if (f3.has_value()) { std::cout << magic_enum::enum_flags_name(f3.value()) << " = " << magic_enum::enum_integer(f3.value()) << std::endl; }

                auto result = magic_enum::enum_cast<IPPROTO>("IPPROTO_TCP");
                if (result.has_value())
                {
                    std::cout << "IPPROTO_TCP value: " << result.value() << std::endl;
                }

typedef enum {

if(_WIN32_WINNT >= 0x0501)

IPPROTO_HOPOPTS       = 0,  // IPv6 Hop-by-Hop options

endif//(_WIN32_WINNT >= 0x0501)

IPPROTO_ICMP          = 1,
IPPROTO_IGMP          = 2,
IPPROTO_GGP           = 3,

if(_WIN32_WINNT >= 0x0501)

IPPROTO_IPV4          = 4,

endif//(_WIN32_WINNT >= 0x0501)

if(_WIN32_WINNT >= 0x0600)

IPPROTO_ST            = 5,

endif//(_WIN32_WINNT >= 0x0600)

IPPROTO_TCP           = 6,

if(_WIN32_WINNT >= 0x0600)

IPPROTO_CBT           = 7,
IPPROTO_EGP           = 8,
IPPROTO_IGP           = 9,

endif//(_WIN32_WINNT >= 0x0600)

IPPROTO_PUP           = 12,
IPPROTO_UDP           = 17,
IPPROTO_IDP           = 22,

if(_WIN32_WINNT >= 0x0600)

IPPROTO_RDP           = 27,

endif//(_WIN32_WINNT >= 0x0600)

if(_WIN32_WINNT >= 0x0501)

IPPROTO_IPV6          = 41, // IPv6 header
IPPROTO_ROUTING       = 43, // IPv6 Routing header
IPPROTO_FRAGMENT      = 44, // IPv6 fragmentation header
IPPROTO_ESP           = 50, // encapsulating security payload
IPPROTO_AH            = 51, // authentication header
IPPROTO_ICMPV6        = 58, // ICMPv6
IPPROTO_NONE          = 59, // IPv6 no next header
IPPROTO_DSTOPTS       = 60, // IPv6 Destination options

endif//(_WIN32_WINNT >= 0x0501)

IPPROTO_ND            = 77,

if(_WIN32_WINNT >= 0x0501)

IPPROTO_ICLFXBM       = 78,

endif//(_WIN32_WINNT >= 0x0501)

if(_WIN32_WINNT >= 0x0600)

IPPROTO_PIM           = 103,
IPPROTO_PGM           = 113,
IPPROTO_L2TP          = 115,
IPPROTO_SCTP          = 132,

endif//(_WIN32_WINNT >= 0x0600)

IPPROTO_RAW           = 255,

IPPROTO_MAX           = 256,

// // These are reserved for internal use by Windows. // IPPROTO_RESERVED_RAW = 257, IPPROTO_RESERVED_IPSEC = 258, IPPROTO_RESERVED_IPSECOFFLOAD = 259, IPPROTO_RESERVED_WNV = 260, IPPROTO_RESERVED_MAX = 261 } IPPROTO, *PIPROTO;

[icyfox168168]

The version of vcpkg I use

[Neargye]

try magic_enum::enum_name(f3.value())