I'd like type_with_alignment&lt;&gt; to handle sizes between 'true' alignments, and/or have a way to map 'in bwetween' alignments to their lower alignment.<br><br>ie I have a struct of unknown type, but known size = 5.&nbsp; What is it's alignment?&nbsp; You could 'punt' and say max_align, but I suggest that its alignment is &lt;= 5 (ie probably 4 for a typical platform).&nbsp; ie imagine that the struct might have an int as it's first member, but can't have a double (assuming sizeof(double) &gt; 5), so the alignment might need to be alignment_of&lt;int&gt;, but can't be alignment_of&lt;double&gt;.&nbsp; Does this assumption hold true?
<br><br>So how can I map (at compile time) an integer 'n' to the closest 'x' &lt;= n&nbsp; where x is from the set S, and where S is the set of possible alignments?<br><br>Tony<br>