Arguments

 

sub-string

   OpenVMS usage:char_string
   type:         character string
   access:       read only
   mechanism:    by descriptor

   Substring to be found. The sub-string argument is the address of
   a descriptor pointing to this substring.
 

source-string

   OpenVMS usage:char_string
   type:         character string
   access:       read only
   mechanism:    by descriptor

   Source string to be searched by LIB$MATCHC. The source-string
   argument is the address of a descriptor pointing to this source
   string.