__PTHREAD_RWLOCKATTR_SIZE__

Undocumented in source but is binding to C. You might be able to learn more by searching the web for its name.
  1. enum __PTHREAD_RWLOCKATTR_SIZE__;
    version(!CRuntime_Glibc && !CRuntime_Musl && Darwin && D_LP64)
    extern (C) nothrow @nogc
    enum __PTHREAD_RWLOCKATTR_SIZE__ = 16;
  2. enum __PTHREAD_RWLOCKATTR_SIZE__;

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