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-rw-r--r--manual/stdio.texi11
1 files changed, 11 insertions, 0 deletions
diff --git a/manual/stdio.texi b/manual/stdio.texi
index 96c3de4..40d9f22 100644
--- a/manual/stdio.texi
+++ b/manual/stdio.texi
@@ -1140,6 +1140,13 @@ promotions. For arguments of other integer types, you can use these
modifiers:
@table @samp
+@item hh
+Specifies that the argument is a @code{signed char} or @code{unsigned
+char}, as appropriate. A @code{char} argument is converted to an
+@code{int} or @code{unsigned int} by the default argument promotions
+anyway, but the @samp{h} modifier says to convert it back to a
+@code{char} again.
+
@item h
Specifies that the argument is a @code{short int} or @code{unsigned
short int}, as appropriate. A @code{short} argument is converted to an
@@ -2596,6 +2603,10 @@ other integer conversions. You can use the following type modifiers to
specify other sizes of integer:
@table @samp
+@item hh
+Specifies that the argument is a @code{signed char *} or @code{unsigned
+char *}.
+
@item h
Specifies that the argument is a @code{short int *} or @code{unsigned
short int *}.