std::vector problems

[Honestmath]

Hi,

I added the following line to my code within a class declaration:

std::vector<Dat e> m_duedates(100) ;

I also tried:

std::vector<Dat e> m_duedates(100, Date());

My program compiles and runs fine without this line, but with it (the first
style above) I get the error:

error C2059: syntax error : 'constant'

Date is a class with a default constructor Date()

The help didn't help explain the cause of this error. Any ideas??

I was just going to use an array of type Date but the compile kept throwing up
on that too.

Thanks!

Math

[KPB]

Honestmath wrote:

My program compiles and runs fine without this line, but with it (the first
style above) I get the error:

error C2059: syntax error : 'constant'
I have no idea what error C2059 means. My compiler doesn't generate this
error.

Date is a class with a default constructor Date()

The help didn't help explain the cause of this error. Any ideas??

I was just going to use an array of type Date but the compile kept throwing up
on that too.

I can't help you without seeing your *Date* class.

KPB

[cyrusNew]

>

std::vector<Dat e> m_duedates(100) ;

I also tried:

std::vector<Dat e> m_duedates(100, Date());

My program compiles and runs fine without this line, but with it (the
first
style above) I get the error:

try this :

class tet
{
std::vector<Dat e> m_duedates;
public:
tet() : m_duedates(100) {}
};

[Victor Bazarov]

Honestmath wrote:

I added the following line to my code within a class declaration:

std::vector<Dat e> m_duedates(100) ;
You cannot initialise members inside a class _definition_ (I am sure
you meant definition and not declaration).

Non-static data members need to be initialised in the constructor
initialiser list. Read about it in your favourite C++ book.

I also tried:

std::vector<Dat e> m_duedates(100, Date());

My program compiles and runs fine without this line, but with it (the first
style above) I get the error:

error C2059: syntax error : 'constant'

Date is a class with a default constructor Date()

The help didn't help explain the cause of this error. Any ideas??

I was just going to use an array of type Date but the compile kept throwing up
on that too.

V

[KPB]

cyrusNew wrote:

std::vector<D ate> m_duedates(100) ;

I also tried:

std::vector<D ate> m_duedates(100, Date());

My program compiles and runs fine without this line, but with it (the
first
style above) I get the error:

try this :

class tet
{
std::vector<Dat e> m_duedates;
public:
tet() : m_duedates(100) {}
};

Yep... sorry to the original OP about my last post. Yeah, since you
declared this vector as a class member, your declarations won't work as
written.

KPB

[Victor Bazarov]

KPB wrote:

Honestmath wrote:

My program compiles and runs fine without this line, but with it (the
first
style above) I get the error:

error C2059: syntax error : 'constant'

I have no idea what error C2059 means. My compiler doesn't generate this
error.

Date is a class with a default constructor Date()

The help didn't help explain the cause of this error. Any ideas??

I was just going to use an array of type Date but the compile kept
throwing up
on that too.

I can't help you without seeing your *Date* class.

Too bad. There is no need to actually see the Date class because the OP
was trying to initialise a 'vector'.

Similar to this:

#include <vector>
class A {
std::vector<int > blah(100); // will produce the same error
};

it needs to be

#include <vector>
class A {
std::vector<int > blah; // declaration only!
public:
A() : blah(100) {}
};

V

[KPB]

Victor Bazarov wrote:

KPB wrote:

Honestmath wrote:

My program compiles and runs fine without this line, but with it (the
first
style above) I get the error:

error C2059: syntax error : 'constant'

I have no idea what error C2059 means. My compiler doesn't generate
this error.

Date is a class with a default constructor Date()

The help didn't help explain the cause of this error. Any ideas??

I was just going to use an array of type Date but the compile kept
throwing up
on that too.

I can't help you without seeing your *Date* class.

Too bad. There is no need to actually see the Date class because the OP
was trying to initialise a 'vector'.

Similar to this:

#include <vector>
class A {
std::vector<int > blah(100); // will produce the same error
};

it needs to be

#include <vector>
class A {
std::vector<int > blah; // declaration only!
public:
A() : blah(100) {}
};

V

ok

[KPB]

Victor Bazarov wrote:

Too bad. There is no need to actually see the Date class because the OP
was trying to initialise a 'vector'.

Yes but after looking at his question further, he didn't acutally say
that it was a class member that he was trying to initialize, did he?

It could've been a line written in a member function defn. within a
class def, right? Highly unlikely but possible. If this were the case,
his vector declarations should've worked.

The point is, he didn't say it was a class member so at first, I didn't
register it as a class member. Kudos to you for reading between the lines.

Do you see my point now or can I expect more of these snide little
remarks from you?

Thanks,
KPB

[cyrusNew]

Uzytkownik "KPB" <[e-mail]> napisal w wiadomosci
news:yH******** ***********@fe1 0.lga...

Victor Bazarov wrote:

Too bad. There is no need to actually see the Date class because the OP
was trying to initialise a 'vector'.

Yes but after looking at his question further, he didn't acutally say that
it was a class member that he was trying to initialize, did he?

It could've been a line written in a member function defn. within a class
def, right? Highly unlikely but possible. If this were the case, his
vector declarations should've worked.

The point is, he didn't say it was a class member so at first, I didn't
register it as a class member. Kudos to you for reading between the lines.

Do you see my point now or can I expect more of these snide little remarks
from you?

Thanks,
KPB

exactly, I actually wrote a quick example code in MSVC and it printed error
C2059 :)

[Victor Bazarov]

KPB wrote:

Victor Bazarov wrote:

Too bad. There is no need to actually see the Date class because the OP
was trying to initialise a 'vector'.

Yes but after looking at his question further, he didn't acutally say
that it was a class member that he was trying to initialize, did he?

Well, reading the very first sentence in the original post, I see

<< I added the following line to my code within a class declaration:
std::vector<Dat e> m_duedates(100) ; >>

what else could it be but a class member? "within a class declaration"
should have given you enough of a clue.

It could've been a line written in a member function defn. within a
class def, right? Highly unlikely but possible. If this were the case,
his vector declarations should've worked.
Yes, it should have. But it didn't. Couldn't that be a clue in itself?

You know how to initialise a vector, apparently. And how screwed up
should the 'Date' class be to make a compiler barf at both

std::vector<Dat e> m_duedates(100) ;

_and_

std::vector<Dat e> m_duedates(100, Date());

by complaining about the constant '100'?
The point is, he didn't say it was a class member so at first, I didn't
register it as a class member. Kudos to you for reading between the lines.
Thanks.
Do you see my point now or can I expect more of these snide little
remarks from you?

Well you're trying to read between even finer lines than I could ever.
If you consider my remarks as snide and little, I'll stop. Sorry I
bothered you.

V