stl vector help

[Greg]

if I have:


vector<Car*> car;

vector<Car*>::iterator cari;
for(cari = car.begin(); cari != car.end(); cari++)
{
*(cari)->printDetails();
}

where printDetails() is a function in class Car why can I not comple this
code the error?

I get is:
main.cpp: In function `int main()':
main.cpp:75: error: base operand of `->' has non-pointer type `Car'

 

[Alf P. Steinbach]

* Greg:

if I have:


vector<Car*> car;

vector<Car*>::iterator cari;
for(cari = car.begin(); cari != car.end(); cari++)
{
*(cari)->printDetails();
}

where printDetails() is a function in class Car why can I not comple this
code the error?

Possibly because Car doesn't define operator->() ... ;-)

Try

*(cari).printDetails();

or

cari->printDetails();

but not both.

 

[Alf P. Steinbach]

* Alf P. Steinbach:

* Greg:

Possibly because Car doesn't define operator->() ... ;-)

Try

*(cari).printDetails();

Typo (my fingers aped what my eyes saw, I have little control over all these
semi-autonomous subsystems),

(*cari).printDetails();

 

[=?ISO-8859-1?Q?Stefan_N=E4we?=]

* Greg:



Possibly because Car doesn't define operator->() ... ;-)

Try

*(cari).printDetails();

or

cari->printDetails();

but not both.

Huh?
I would say:

(*cari)->printDetails();

Since the vector holds Car*.
Or am I missing something?


Stefan

 

[John Harrison]

if I have:


vector<Car*> car;

vector<Car*>::iterator cari;
for(cari = car.begin(); cari != car.end(); cari++)
{
*(cari)->printDetails();
}

where printDetails() is a function in class Car why can I not comple this
code the error?

(*cari)->printDetails();

john

 

[red floyd]

* Alf P. Steinbach:



Typo (my fingers aped what my eyes saw, I have little control over all these
semi-autonomous subsystems),

(*cari).printDetails();

Alf, it's a vector of Car*, so it should be

(*cari)->printDetails();

 

[Alf P. Steinbach]

* red floyd:

Alf, it's a vector of Car*
Oops.


, so it should be

(*cari)->printDetails();

Yep. Thanks.

 

[Arndt Muehlenfeld]

* Alf P. Steinbach: ....
Typo (my fingers aped what my eyes saw, I have little control over all
these semi-autonomous subsystems),

(*cari).printDetails();

Of course both, as the element-type of vector is a pointer.
But write
(*cari)->printDetails();

 

[Yefim Keselman]

if I have:


vector<Car*> car;

vector<Car*>::iterator cari;
for(cari = car.begin(); cari != car.end(); cari++)
{
*(cari)->printDetails();
}

where printDetails() is a function in class Car why can I not comple this
code the error?

I get is:
main.cpp: In function `int main()':
main.cpp:75: error: base operand of `->' has non-pointer type `Car'

It might be easier to avoid this kind of errors if you did it in steps:
vector<Car*>::iterator cari;
for (cari = car.begin(); cari != car.end(); ++cari)
{
Car* carp = *cari;
carp->printDetails();
}