<s>
AspectC++	B-Application
is	O
an	O
aspect-oriented	B-Architecture
extension	O
of	O
C	B-Language
and	O
C++	B-Language
languages	I-Language
.	O
</s>
<s>
It	O
has	O
a	O
source-to-source	B-Language
compiler	I-Language
,	O
which	O
translates	O
AspectC++	B-Application
source	O
code	O
into	O
compilable	O
C++	B-Language
.	O
</s>
<s>
The	O
compiler	O
is	O
available	O
under	O
the	O
GNU	B-License
GPL	I-License
,	O
though	O
some	O
extensions	O
specific	O
to	O
Microsoft	B-Application
Windows	I-Application
are	O
only	O
available	O
through	O
pure-systems	O
GmbH	O
.	O
</s>
<s>
Aspect-oriented	B-Architecture
programming	I-Architecture
allows	O
modularizing	O
cross-cutting	O
concerns	O
in	O
a	O
single	O
module	O
,	O
an	O
aspect	B-General_Concept
.	O
</s>
<s>
All	O
calls	O
to	O
a	O
specific	O
function	O
can	O
be	O
traced	O
using	O
an	O
aspect	B-General_Concept
,	O
rather	O
than	O
inserting	O
'	O
cerr	O
 '	O
or	O
print	O
statements	O
in	O
many	O
places	O
:	O
</s>
<s>
The	O
Tracer	O
aspect	B-General_Concept
will	O
print	O
out	O
a	O
message	O
before	O
any	O
call	O
to	O
%	O
Iter::Reset	O
.	O
</s>
<s>
means	O
that	O
it	O
will	O
match	O
all	O
classes	B-General_Concept
that	O
end	O
in	O
Iter	O
.	O
</s>
<s>
Each	O
'	O
matched	O
 '	O
location	O
in	O
the	O
source	O
code	O
is	O
called	O
a	O
join	B-Application
point	I-Application
—	O
the	O
advice	O
is	O
joined	O
to	O
(	O
or	O
advises	O
)	O
that	O
code	O
.	O
</s>
<s>
AspectC++	B-Application
provides	O
a	O
join	B-Application
point	I-Application
API	O
to	O
provide	O
and	O
access	O
to	O
information	O
about	O
the	O
join	B-Application
point	I-Application
.	O
</s>
