text: //===---Fatal.cpp - Stub for the threading tests --------------------------===//
  //
  // This source file is part of the Swift.org open source project
  //
  // Copyright (c) 2022 Apple Inc. and the Swift project authors
  // Licensed under Apache License v2.0 with Runtime Library Exception
  //
  // See https://swift.org/LICENSE.txt for license information
  // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
  //
  //===----------------------------------------------------------------------===//
  
  #include "swift/Threading/Errors.h"
  
  #include <cstdarg>
  #include <cstdio>
  #include <cstdlib>
  
  SWIFT_ATTRIBUTE_NORETURN
  SWIFT_FORMAT(1, 2)
  void swift::threading::fatal(const char *msg, ...) {
    va_list val;
  
    va_start(val, msg);
    std::vfprintf(stderr, msg, val);
    va_end(val);
  
    std::abort();
  }
  