title: STRING+C
status:
 we recommend to reserve the name STRING+C for the functionality given below.

description:

\ ( addr1 len1 c -- addr1 len2 )
\ append c to the text of length len2 in the buffer at addr1.
\ Return address and length of the resulting text.
\ An ambiguous condition exists if the resulting text is larger
\ than the size of buffer at addr1.
: STRING+C ( addr len c -- addr len+1 )
   DUP 2OVER + C! DROP 1+
;

see: STRING+ ../string-plus/index.html