Your boat will sink if you use do while break. I know, I've tried. :-) One aspect I failed to highlight is the logging the macro does, which can come in handy

Your boat will sink if you use do while break. I know, I've tried. :-) One aspect I failed to highlight is the logging the macro does, which can come in handy. I wish I could erase the MALLOC thing, it was an after-thought ... and now I feel like I'm leading people astray (oh well...). Even in the code that used it, it was for a existing calls that returned NULL instead of an rc. malloc() was rigged to blow in that code base. Sigh...