Constant std::os::fortanix_sgx::usercalls::raw::USERCALL_USER_DEFINED

pub const USERCALL_USER_DEFINED: u64 = 2147483648; // 2_147_483_648u64

🔬 This is a nightly-only experimental API. (sgx_platform #56975)

Usercall numbers with this bit set will never be defined by this specification.