__errno

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
  1. int __errno()
  2. int __errno()
    version(!CRuntime_Microsoft && !CRuntime_Glibc && !CRuntime_Musl && !CRuntime_Newlib && OpenBSD)
    extern (C) @trusted nothrow @nogc ref
    int
    __errno
    ()
  3. int __errno()
  4. int __errno;
  5. int __errno()

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