--- JSON-XS/XS.xs	2011/03/08 10:18:50	1.109
+++ JSON-XS/XS.xs	2011/06/01 13:01:09	1.110
@@ -262,6 +262,7 @@
   // this relies greatly on the quality of the pow ()
   // implementation of the platform, but a good
   // implementation is hard to beat.
+  // (IEEE 754 conformant ones are required to be exact)
   if (postdp) *expo -= eaccum;
   *accum += uaccum * Perl_pow (10., *expo);
   *expo += eaccum;