Correctly document the BR 3392368 fix, add test case
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
diff --git a/doc/changes.src b/doc/changes.src
index c2d3c7d..a3bd0cc 100644
--- a/doc/changes.src
+++ b/doc/changes.src
@@ -21,9 +21,10 @@
code.
\b Fix a corner case in the floating-point code where a
-binary/octal/hexadecimal floating-point constant starting with the
-digit 1 and having at least 33 mantissa bits would sometimes produce
-incorrect results.
+binary/octal/hexadecimal floating-point constant starting with a digit
+for which the upper bit is 1 (1, 4-7, 8-F respectively) and having at
+least 33 mantissa bits would sometimes produce incorrect results for
+the quad-precision format.
\S{cl-2.14} Version 2.14