<s>
Insure++	B-General_Concept
is	O
a	O
memory	B-General_Concept
debugger	I-General_Concept
computer	B-Application
program	I-Application
,	O
used	O
by	O
software	O
developers	O
to	O
detect	O
various	O
errors	O
in	O
programs	O
written	O
in	O
C	B-Language
and	O
C++	B-Language
.	O
</s>
<s>
It	O
is	O
made	O
by	O
Parasoft	O
,	O
and	O
is	O
functionally	O
similar	O
to	O
other	O
memory	B-General_Concept
debuggers	I-General_Concept
,	O
such	O
as	O
Purify	B-General_Concept
,	O
Valgrind	B-Application
and	O
Dr	B-Application
Memory	I-Application
.	O
</s>
<s>
Insure++	B-General_Concept
can	O
automatically	O
find	O
erroneous	O
accesses	O
to	O
freed	O
memory	O
(	O
use-after-free	O
situations	O
)	O
,	O
array-bounds	O
violations	O
,	O
freeing	O
unallocated	O
memory	O
(	O
which	O
often	O
happens	O
when	O
a	O
programmer	O
frees	O
the	O
same	O
memory	O
twice	O
,	O
or	O
when	O
he	O
frees	O
global	O
or	O
stack	O
memory	O
)	O
,	O
and	O
many	O
others	O
.	O
</s>
<s>
Unlike	O
Purify	B-General_Concept
and	O
Valgrind	B-Application
,	O
Insure++	B-General_Concept
inserts	O
its	O
instrumentation	B-Application
at	O
the	O
source-code	O
level	O
,	O
which	O
allows	O
it	O
to	O
detect	O
errors	O
that	O
the	O
other	O
tools	O
miss	O
.	O
</s>
<s>
In	O
particular	O
,	O
Insure++	B-General_Concept
can	O
detect	O
buffer	B-General_Concept
overflows	I-General_Concept
in	O
automatic	O
arrays	O
,	O
and	O
overflows	O
which	O
involve	O
pointers	O
that	O
accidentally	O
"	O
jump	O
"	O
from	O
one	O
valid	O
memory	O
region	O
to	O
another	O
,	O
as	O
in	O
the	O
following	O
example	O
:	O
</s>
<s>
The	O
source-level	O
instrumentation	B-Application
allows	O
it	O
to	O
not	O
only	O
identify	O
that	O
a	O
leak	O
occurred	O
,	O
but	O
where	O
it	O
occurred	O
.	O
</s>
<s>
Some	O
tools	O
merely	O
provide	O
information	O
about	O
where	O
the	O
memory	O
was	O
allocated	O
,	O
Insure++	B-General_Concept
also	O
gives	O
a	O
stack	O
trace	O
for	O
when/where	O
the	O
actual	O
leak	O
occurred	O
.	O
</s>
<s>
Additionally	O
,	O
Insure++	B-General_Concept
will	O
produce	O
Linear	O
Code	O
Sequence	O
and	O
Jump	O
Code	B-Application
Coverage	I-Application
metrics	O
for	O
all	O
tested	O
code	O
.	O
</s>
