error_handling.h

#ifndef ERROR_HANDLING_CHOLLA_H
#define ERROR_HANDLING_CHOLLA_H
#include <stdlib.h>
 
#include <optional>
#include <type_traits>  // std::false_type
 
#include "../global/global.h"
[[noreturn]] void chexit(int code);
 
template <class...>
constexpr std::false_type always_false{};
 
void Check_Configuration(Parameters const& P);
 
[[noreturn]] void Abort_With_Err_(const char* func_name, const char* file_name, int line_num, const char* msg, ...);
 
/* __CHOLLA_PRETTY_FUNC__ is a magic constant like __LINE__ or __FILE__ that
 * provides the name of the current function.
 * - The C++11 standard requires that __func__ is provided on all platforms, but
 *   that only provides limited information (just the name of the function).
 * - Where available, we prefer to use compiler-specific features that provide
 *   more information about the function (like the scope of the function & the
 *   the function signature).
 */
#ifdef __GNUG__
  #define __CHOLLA_PRETTY_FUNC__ __PRETTY_FUNCTION__
#else
  #define __CHOLLA_PRETTY_FUNC__ __func__
#endif
 
#define CHOLLA_ERROR(...) Abort_With_Err_(__CHOLLA_PRETTY_FUNC__, __FILE__, __LINE__, __VA_ARGS__)
 
#define CHOLLA_ASSERT(cond, ...)                                              \
  if (not(cond)) { /* NOLINT */                                               \
    Abort_With_Err_(__CHOLLA_PRETTY_FUNC__, __FILE__, __LINE__, __VA_ARGS__); \
  }
 
template <typename T>
[[gnu::always_inline]] inline T& get_or_abort(std::optional<T>& optional)
{
  if (optional.has_value()) {
    return optional.value();
  }
  CHOLLA_ERROR("the optional is empty");
}
 
#endif /*ERROR_HANDLING_CHOLLA_H*/