[PATCH 06/22] man/curs_add_wch.3x: Add "HISTORY" section.

[G. Branden Robinson]

---
 man/curs_add_wch.3x | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/man/curs_add_wch.3x b/man/curs_add_wch.3x
index 1fa0d58c1..b1fac2b88 100644
--- a/man/curs_add_wch.3x
+++ b/man/curs_add_wch.3x
@@ -526,6 +526,27 @@ .SS "Complex Characters"
 In the latter case,
 .I \%ncurses
 adds the non-spacing character to the active complex character.
+.SH HISTORY
+These functions were initially specified by X/Open Curses,
+Issue 4.
+The System\ V Interface Definition,
+Version 4 (1995),
+specified functions named
+.I \%waddwch
+and
+.I \%wechowchar
+(and the usual variants).
+These were later additions to
+.RI SVr4. x ,
+not appearing in the first SVr4 (1989).
+They differed from X/Open's
+.I \%wadd_wch
+and
+.I \%wecho_wchar
+in that they each took an argument of type
+.I \%wchar_t
+instead of
+.IR \%cchar_t "."
 .SH SEE ALSO
 \fB\%curs_addch\fP(3X) describes comparable functions of the
 .I \%ncurses
-- 
2.30.2

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