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Function `core.runtime.defaultTraceHandler`

Get the default Throwable.TraceInfo implementation for the platform


						
				object.Throwable.TraceInfo defaultTraceHandler
				(
				

				  void* ptr = null
				

				);

This functions returns a trace handler, allowing to inspect the current stack trace.

IMPORTANT NOTE! the returned trace is potentially not GC allocated, and so you must call defaultTraceDeallocator when you are finished with the TraceInfo

Parameters

Name	Description
ptr	(Windows only) The context to get the stack trace from. When `null` (the default), start from the current frame.

Returns

A Throwable.TraceInfo implementation suitable to iterate over the stack, or null. If called from a finalizer (destructor), always returns null as trace handlers allocate.

Example

Example of a simple program printing its stack trace

import core.runtime;
import core.stdc.stdio;

void main()
{
    auto trace = defaultTraceHandler(null);
    foreach (line; trace)
    {
        printf("%.*s\n", cast(int)line.length, line.ptr);
    }
    defaultTraceDeallocator(trace);
}

Authors

Sean Kelly

License

Boost License 1.0