dune-common  2.9.0
stdthread.hh
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1 // -*- tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
2 // vi: set et ts=4 sw=2 sts=2:
3 // SPDX-FileCopyrightInfo: Copyright (C) DUNE Project contributors, see file LICENSE.md in module root
4 // SPDX-License-Identifier: LicenseRef-GPL-2.0-only-with-DUNE-exception
5 
6 #ifndef DUNE_COMMON_STDTHREAD_HH
7 #define DUNE_COMMON_STDTHREAD_HH
8 
9 namespace Dune
10 {
11 
12  // used internally by assertCallOnce for the actual check
13  void doAssertCallOnce(const char *file, int line, const char *function);
14 
17 
35  inline void assertCallOnce(const char *file = nullptr, int line = -1,
36  const char *function = nullptr)
37  {
38  // make sure to call this only the first time this function is invoked
39  [[maybe_unused]] static const bool works
40  = (doAssertCallOnce(file, line, function), true);
41  }
42 
45 
49 #define DUNE_ASSERT_CALL_ONCE() \
50  ::Dune::assertCallOnce(__FILE__, __LINE__, __func__)
51 
52 } // namespace Dune
53 
54 #endif // DUNE_COMMON_STDTHREAD_HH
Dune namespace.
Definition: alignedallocator.hh:13
void assertCallOnce(const char *file=nullptr, int line=-1, const char *function=nullptr)
Make sure call_once() works and provide a helpful error message otherwise.
Definition: stdthread.hh:35
void doAssertCallOnce(const char *file, int line, const char *function)
Definition: stdthread.cc:42