[fs.op.permissions] Escape unary complement operator

jwakely · jwakely · commit 256d202e61f4 · 2016-06-06T13:55:46.000+01:00
diff --git a/source/iostreams.tex b/source/iostreams.tex
@@ -14078,7 +14078,7 @@
 \tcode{add_perms} &
   \tcode{status(p).permissions() | (prms \& perms::mask)} \\ \rowsep
 \tcode{remove_perms} &
-  \tcode{status(p)}\tcode{.permissions() \& ~(prms \& perms::mask)} \\
+  \tcode{status(p)}\tcode{.permissions() \& \~(prms \& perms::mask)} \\
 \end{floattable}
 
 \enternote Conceptually permissions are viewed as bits, but the actual
