(Sorry if this double posts.  I'm having trouble getting through at all.)

How should I compare immutable ints to ensure that they are actually equal?

I was quite surprised to receive the following error message:

cbt2.d(732): Error: function object.Object.opEquals (Object o) is not callable using argument types (immutable(int))

when I tried to assert that two values were equal.  They were (should be), indeed, immutable ints, but I'd prefer that I could check that they were equivalent without printing them both out.  (I'm having a bit of trouble keeping my logic straight, so I'm trying to assert many things that should obviously be true.  And sometimes I've been surprised.)

-- 
Charles Hixson

On Tue, 18 Jun 2013 15:37:44 -0400, Charles Hixson <charleshixsn@earthlink.net> wrote:

> (Sorry if this double posts.  I'm having trouble getting through at all.)
>
> How should I compare immutable ints to ensure that they are actually equal?
>
> I was quite surprised to receive the following error message:
>
> cbt2.d(732): Error: function object.Object.opEquals (Object o) is not callable using argument types (immutable(int))
>
> when I tried to assert that two values were equal.  They were (should be), indeed, immutable ints, but I'd prefer that I could check that they were equivalent without printing them both out.  (I'm having a bit of trouble keeping my logic straight, so I'm trying to assert many things that should obviously be true.  And sometimes I've been surprised.)
>

The error quoted above suggests you are trying to compare an object type with an int.  Can you give some more context?  You can do that, but you have to overload opEquals.

-Steve

2nd attempted reply:
On 06/18/2013 12:40 PM, Steven Schveighoffer wrote:
> On Tue, 18 Jun 2013 15:37:44 -0400, Charles Hixson <charleshixsn@earthlink.net> wrote:
>
>> (Sorry if this double posts.  I'm having trouble getting through at all.)
>>
>> How should I compare immutable ints to ensure that they are actually equal?
>>
>> I was quite surprised to receive the following error message:
>>
>> cbt2.d(732): Error: function object.Object.opEquals (Object o) is not callable using argument types (immutable(int))
>>
>> when I tried to assert that two values were equal.  They were (should be), indeed, immutable ints, but I'd prefer that I could check that they were equivalent without printing them both out.  (I'm having a bit of trouble keeping my logic straight, so I'm trying to assert many things that should obviously be true.  And sometimes I've been surprised.)
>>
>
> The error quoted above suggests you are trying to compare an object type with an int.  Can you give some more context?  You can do that, but you have to overload opEquals.
>
> -Steve
>
Thanks.  That was the answer I couldn't see.  I read it as complaining about comparing two immutable ints, but
assert (nodes[root2.pg.pgNo] == root2.pg.pgNo);
should have read
assert (nodes[root2.pg.pgNo].pg.pgNo == root2.pg.pgNo);



-- 
Charles Hixson

3rd or 4th try:
On 06/18/2013 12:40 PM, Steven Schveighoffer wrote:
> On Tue, 18 Jun 2013 15:37:44 -0400, Charles Hixson <charleshixsn@earthlink.net> wrote:
>
>> (Sorry if this double posts.  I'm having trouble getting through at all.)
>>
>> How should I compare immutable ints to ensure that they are actually equal?
>>
>> I was quite surprised to receive the following error message:
>>
>> cbt2.d(732): Error: function object.Object.opEquals (Object o) is not callable using argument types (immutable(int))
>>
>> when I tried to assert that two values were equal.  They were (should be), indeed, immutable ints, but I'd prefer that I could check that they were equivalent without printing them both out.  (I'm having a bit of trouble keeping my logic straight, so I'm trying to assert many things that should obviously be true.  And sometimes I've been surprised.)
>>
>
> The error quoted above suggests you are trying to compare an object type with an int.  Can you give some more context?  You can do that, but you have to overload opEquals.
>
> -Steve
>


-- 
Charles Hixson

On 06/18/2013 12:40 PM, Steven Schveighoffer wrote:
> On Tue, 18 Jun 2013 15:37:44 -0400, Charles Hixson <charleshixsn@earthlink.net> wrote:
>
>> (Sorry if this double posts.  I'm having trouble getting through at all.)
>>
>> How should I compare immutable ints to ensure that they are actually equal?
>>
>> I was quite surprised to receive the following error message:
>>
>> cbt2.d(732): Error: function object.Object.opEquals (Object o) is not callable using argument types (immutable(int))
>>
>> when I tried to assert that two values were equal.  They were (should be), indeed, immutable ints, but I'd prefer that I could check that they were equivalent without printing them both out.  (I'm having a bit of trouble keeping my logic straight, so I'm trying to assert many things that should obviously be true.  And sometimes I've been surprised.)
>>
>
> The error quoted above suggests you are trying to compare an object type with an int.  Can you give some more context?  You can do that, but you have to overload opEquals.
>
> -Steve
Thanks.  That was the answer I couldn't see.  I read it as complaining about comparing two immutable ints, but
assert (nodes[root2.pg.pgNo] == root2.pg.pgNo);
should have read
assert (nodes[root2.pg.pgNo].pg.pgNo == root2.pg.pgNo);


-- 
Charles Hixson