stack_trace() [2/9]

xtd::diagnostics::stack_trace::stack_trace ( bool  need_file_info )

explicit

Initializes a new instance of the xtd::diagnostics::stack_trace class from the caller's frame, optionally capturing source information.

Parameters

need_file_info

true to capture the file name, line number, and column number; otherwise, false.

Examples

The following code example displays the first and last function calls in a stack trace.

void Level_5_method() {
  try {
    class_level_6 nested_class;
    nested_class.level_6_method();
  } catch (const system_exception& e) {
    console::write_line(" Level_5_method exception handler");
 
    stack_trace st;
 
    // Display the most recent function call.
    stack_frame sf = st.get_frame(0);
    console::write_line();
    console::write_line("  Exception in method: ");
    console::write_line("      {}", sf.get_method());
 
    if (st.frame_count() >1) {
      // Display the highest-level function call
      // in the trace.
      sf = st.get_frame(st.frame_count() - 1);
      console::write_line("  Original function call at top of call stack):");
      console::write_line("      {}", sf.get_method());
    }
 
    console::write_line();
    console::write_line("   ... throwing exception to next level ...");
    console::write_line("-------------------------------------------------\n");
    throw;
  }
}

Remarks

The xtd::diagnostics::stack_trace is created with the caller's current thread.