dune-common  2.8.0
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 
4 #ifndef DUNE_COMMON_STDTHREAD_HH
5 #define DUNE_COMMON_STDTHREAD_HH
6 
7 namespace Dune
8 {
9 
10  // used internally by assertCallOnce for the actual check
11  void doAssertCallOnce(const char *file, int line, const char *function);
12 
15 
33  inline void assertCallOnce(const char *file = nullptr, int line = -1,
34  const char *function = nullptr)
35  {
36  // make sure to call this only the first time this function is invoked
37  [[maybe_unused]] static const bool works
38  = (doAssertCallOnce(file, line, function), true);
39  }
40 
43 
47 #define DUNE_ASSERT_CALL_ONCE() \
48  ::Dune::assertCallOnce(__FILE__, __LINE__, __func__)
49 
50 } // namespace Dune
51 
52 #endif // DUNE_COMMON_STDTHREAD_HH
Dune namespace.
Definition: alignedallocator.hh:11
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:33
void doAssertCallOnce(const char *file, int line, const char *function)
Definition: stdthread.cc:40