<s>
In	O
computer	B-General_Concept
science	I-General_Concept
,	O
having	O
value	B-Application
semantics	I-Application
(	O
also	O
value-type	O
semantics	O
or	O
copy-by-value	O
semantics	O
)	O
means	O
for	O
an	O
object	O
that	O
only	O
its	O
value	O
counts	O
,	O
not	O
its	O
identity	O
.	O
</s>
<s>
Immutable	B-Application
objects	I-Application
have	O
value	B-Application
semantics	I-Application
trivially	O
,	O
and	O
in	O
the	O
presence	O
of	O
mutation	O
,	O
an	O
object	O
with	O
value	B-Application
semantics	I-Application
can	O
only	O
be	O
uniquely-referenced	O
at	O
any	O
point	O
in	O
a	O
program	O
.	O
</s>
