've played with cgnslib_3.3.0/src/tests/write_links.c so as to know how to use cgns link.
This program writes cgns files and then reads them.
The problem is, when I change the second argument of cg_open at line 98th
from CG_MODE_READ to CG_MODE_MODIFY, the program ends with the error of
"cgio_get_label:The linked-to node does not exist"
Does anyone know why this error happens?