and logical and ck_null 0
or logical or ck_null 0
xor logical xor ck_null fs S S
-cond_expr conditional expression ck_null 0
+cond_expr conditional expression ck_null d
andassign logical and assignment ck_null s
orassign logical or assignment ck_null s
shmget shmget ck_fun imst S S S
shmctl shmctl ck_fun imst S S S
shmread shmread ck_fun imst S S S S
-shmwrite shmwrite ck_fun ist S S S S
+shmwrite shmwrite ck_fun imst S S S S
# Message passing.