RE: [Dev-C++] a trivial question on for loops

[Ioannis V. <no...@ya...>]

> -----Original Message-----
> From: dev...@li...=20
> [mailto:dev...@li...] On Behalf=20
> Of Luigi Santillo
> Sent: Tuesday, October 16, 2001 7:40 PM
> To: dev...@li...
> Subject: [Dev-C++] a trivial question on for loops
>=20
>=20
> Hello everybody,
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> I know this is an easy one, but what I've seen on a C++ book=20
> puzzled me.
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> Consider the two pieces of code that follow:
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> 1) as found on a recent C++ book
> list<int> l_int;
> // ... fill the list with a few intergers
> for (list<int>::const_iterator i =3D l_int.begin(), i !=3D=20
> l_int.end(); ++i)
>     // ... do something
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> 2) as I used to know
> list<int> l_int;
> // ... fill the list with a few intergers=20
> list<int>::const_iterator stop =3D l_int.end(); for=20
> (list<int>::const_iterator i =3D l_int.begin(), i !=3D stop; ++i)
>     // ... do something
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> The two pieces are equivalent, but the second one is more=20
> efficient. Do you=20
> agree with me?

Well at terms of speed they should be the same, at terms of space the
second occupies more (1 variable). As i have told before templates tend
to be expanded inline in compilation time so the speed is the same.


Ioannis

* Ioannis Vranos
* Programming pages: http://www.noicys.f2s.com
* Alternative URL: http://run.to/noicys