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  1. #include <iostream>
  2.  
  3. #include <execinfo.h>
  4.  
  5. namespace stck {
  6.  
  7.  
  8. class stacktrace_t {};
  9.  
  10. stacktrace_t stacktrace;
  11.  
  12. std::ostream &operator<<(std::ostream &out, stacktrace_t) {
  13.   out << "stacktrace:\n";
  14.  
  15.   size_t max = 256;
  16.   void **stackframes = new void *[max];
  17.   size_t numel;
  18.   while ((numel = backtrace(stackframes, max)) >= max) {
  19.     max *= 2;
  20.     delete[] stackframes;
  21.     stackframes = new void *[max];
  22.   }
  23.  
  24.   char **symbols = backtrace_symbols(stackframes, numel);
  25.   for(size_t i = 0; i < numel; ++i)
  26.     out << symbols[i] << '\n';
  27.  
  28.   delete[] stackframes;
  29.   return out;
  30. }
  31.  
  32.  
  33. }
  34.  
  35. int main() {
  36. 	std::cout << stck::stacktrace;
  37.  
  38. }
Success #stdin #stdout 0s 3472KB
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stdin
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Standard input is empty
stdout
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stacktrace:
./prog() [0x804887f]
./prog() [0x80486da]
/lib/i386-linux-gnu/i686/cmov/libc.so.6(__libc_start_main+0xf5) [0xb75a18f5]
./prog() [0x8048731]
https://ideone.com/RWoADT
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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