mtext_ins_char -

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free
       Documentation License <http://www.gnu.org/licenses/fdl.html>.

Version 1.8.4                                    Mon Sep 25 2023                           mtext_ins_char(3m17n)

       Insert a character into an M-text. The mtext_ins_char() function inserts n copies of character c into
       M-text mt at position pos. As a result, mt is lengthen by n.

           MERROR_RANGE

       mtext_ins_char -

           If the operation was successful, mtext_ins() returns 0. Otherwise, it returns -1 and assigns an error
           code to the external variable merror_code.

           mtext_ins, mtext_del()

       int mtext_ins_char (MText * mt, int pos, int c, int n)