Re: [boost] Improved assertions

From: Neal D. Becker (nbecker_at_[hidden])
Date: 2002-08-21 11:58:55

Another useful function for glibc systems is the "backtrace()".  If I
could just figure out how to demangle the output, we'd be in business.

Here is an example:

---------------
#include <execinfo.h>
#include <iostream>
#include <cstdlib>
     
using namespace std;

/* Obtain a backtrace and print it to `stdout'. */
void
print_trace (void)
{
  void *array[10];
  size_t size;
  char **strings;
  size_t i;
     
  size = backtrace (array, 10);
  strings = backtrace_symbols (array, size);
     
  for (i = 0; i < size; i++)
    cout << strings[i] << '\n';
     
  free (strings);
}
     
/* A dummy function to make the backtrace more interesting. */
void
dummy_function (void)
{
  print_trace ();
}
     
int
main (void)
{
  dummy_function ();
  return 0;
}
----------------------

Here's the output:
g++3 -g -o Hello Hello.cc -rdynamic

./Hello
Hello
Hello(_Z11print_tracev+0x14) [0x804882c]
Hello(_Z14dummy_functionv+0xb) [0x80488a9]
Hello(main+0x15) [0x80488c1]
Hello(__libc_start_main+0x95) [0x42017589]
Hello(__gxx_personality_v0+0x31) [0x8048789]