Electroneum
error.h
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27 #pragma once
28 
29 #include <system_error>
30 #include <type_traits>
31 
33 #define ELECTRONEUM_LMDB_CHECK(...) \
34  do \
35  { \
36  const int err = __VA_ARGS__ ; \
37  if (err) \
38  return {lmdb::error(err)}; \
39  } while (0)
40 
41 namespace lmdb
42 {
44  enum class error : int
45  {
46  // 0 is reserved for no error, as per expect<T>
47  // All other errors are the values reported by LMDB
48  };
49 
50  std::error_category const& error_category() noexcept;
51 
52  inline std::error_code make_error_code(error value) noexcept
53  {
54  return std::error_code{int(value), error_category()};
55  }
56 }
57 
58 namespace std
59 {
60  template<>
61  struct is_error_code_enum<::lmdb::error>
62  : true_type
63  {};
64 }
std::error_category const & error_category() noexcept
Definition: error.cpp:92
STL namespace.
std::error_code make_error_code(error value) noexcept
Definition: error.h:52
bool_constant< true > true_type
Definition: gtest-port.h:2210
const GenericPointer< typename T::ValueType > T2 value
Definition: pointer.h:1225
error
Tracks LMDB error codes.
Definition: error.h:44
#define inline
Definition: inline_c.h:35