common/alassert.cpp

   1
   2 #include "alassert.h"
   3
   4 #include <exception>
   5 #include <stdexcept>
   6 #include <string>
   7
   8 namespace al {
   9
  10 [[noreturn]]
  11 void do_assert(const char *message, int linenum, const char *filename, const char *funcname) noexcept
  12 {
  13     /* Calling std::terminate in a catch block hopefully causes the system to
  14      * provide info about the caught exception in the error dialog. At least on
  15      * Linux, this results in the process printing
  16      *
  17      * terminate called after throwing an instance of 'std::runtime_error'
  18      *   what():  <message here>
  19      *
  20      * before terminating from a SIGABRT. Hopefully Windows and Mac will do the
  21      * appropriate things with the message for an abnormal termination.
  22      */
  23     try {
  24         std::string errstr{filename};
  25         errstr += ':';
  26         errstr += std::to_string(linenum);
  27         errstr += ": ";
  28         errstr += funcname;
  29         errstr += ": ";
  30         errstr += message;
  31         throw std::runtime_error{errstr};
  32     }
  33     catch(...) {
  34         std::terminate();
  35     }
  36 }
  37
  38 } /* namespace al */