CSTOPB

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
  1. auto CSTOPB;
  2. auto CSTOPB;
  3. auto CSTOPB;
  4. auto CSTOPB;
    version(!OSX && !linux && !FreeBSD && solaris)
    extern (C) const
    auto CSTOPB = octal!100;

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