Toolkit Tutorial: Advanced Programming



  
/* The null string, "\0", indicates a null object was used. */

  

string
 
=
 
dt_cansmiles
(
&
length
,
 
molecule
,
 
0
);

  

if
 
(
NULL
 
==
 
string
)

    

printf
(
"The invalid string comes from a null object.\n"
);