Re: [Audyssey] bgt operator overloading question

[Paul Lemm]

Hi Aaron,

Sorry for the late reply, much appreciated for sending over the example ,
it's something I've been stuck on for a while so its really good to finally
see how to implement it, not quite sure I'd have got it without the example
so thanks very much for the help


Paul 
-Original Message-
From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron Baker
Sent: Friday, February 19, 2016 1:08 PM
To: Gamers Discussion list
Subject: Re: [Audyssey] bgt operator overloading question

Hi,
I don't really like to do code handouts. It isn't conducive to good
learning. Still, I'm vaguely interested in this since I myself have
not ever sorted strings alphabetically, so I will write something up
here.
This implementation may have errors. I tested it on six items with
various first letters and it worked great, but I may have not
accounted for some edge cases, who knows.
Here is the opCmp method you should use.
int opCmp(players_items@ other)
{
// Lowercase both strings so that uppercase lettered items do not
appear before lowercased ones.
string other_name=string_to_lower_case(other.name);
string original_name=string_to_lower_case(name);
// Now simply do comparisons as we would do on ints. Keep in mind this
deceptively simple action will take much longer than integer
comparison.
if(original_name>other_name)
return 1;
else if(original_name<other_name)
return -1;
else
return 0;
}
Best,
Aaron

On 2/19/16, Paul Lemm <paul.lem...@gmail.com> wrote:
> Hi Aaron,
>
> Thanks for the reply that makes sense. Sorry to be a pain I'm still not
> 100%
> sure though how  I'd  add that into  my code  so that I could get opCmp
to
> sort the array of class's alphabetically  by name. could I ask for an
> example using the below script  how you'd add that in  there to sort the
> array?
>
>
>
>  class players_items
>  {
>  string name;
>  players_items(string name)
> {
>  this.name = name;
> }
> }
>
> players_items@[] inventory;
>
>
> many thanks
>
>
> -Original Message-
> From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron Baker
> Sent: Friday, February 19, 2016 12:52 AM
> To: Gamers Discussion list
> Subject: Re: [Audyssey] bgt operator overloading question
>
> opCmp wants you to return a positive number if the source object is
> greater than the parameter passed, 0 if they are equal, and -1 if the
> source object is less than the parameter.
> You can use the less than and greater than operator on strings, so the
> rest should be obvious. One not so obvious complication is that this
> sort technique is case sensative, so make sure to unify the case by
> either uppercasing or lowercasing all characters.
> Best,
> Aaron
>
> On 2/18/16, Paul Lemm <paul.lem...@gmail.com> wrote:
>> Hi Aaron and John,
>>
>> This is something that has had me stuck for a while now.  As in a game I
>> have written, I have created a class, and then created an aray of that
>> class, but want to sort the array so it is alphabetical.  I've read  the
>> help topic on sorting arrays  which makes sense  for sorting an array of
>> strings , but I don't understand how I would get it to sort an array of
>> classes. The BGT help document just says you need to overload the
>> comparison
>> operator.   I've always been a little unclear on overloading operators
>> and
>> not sure how I would go about overloading the comparison operator in my
>> class. So using the basic class code below how would I go about
> overloading
>> the comparison operator and then sorting the array of that class
>> alphabetically by name?
>>
>> class players_items
>> {
>> string name;
>> string description;
>> bool key_item;
>> players_items(string name, string description, bool key_item)
>> {
>> this.name = name;
>> this.description = description;
>> this.key_item = key_item;
>> }
>> }
>>
>>
>> Players_items[] inventory;
>>
>> Many thanks for any help you can offer
>>
>> Paul
>>
>>
>>
>>
>>
>>
>> -Original Message-
>> From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron
>> Baker
>> Sent: Thursday, February 18, 2016 1:20 PM
>> To: Gamers Discussion list
>> Subject: Re: [Audyssey] bgt operator overloading question
>>
>> Hello,
>> Did you actually try it? I know that that can make the difference
>> between runtime error and no runtime error. I thought it was kind of
>> odd too, but it is usually bad practice to pass an object by value
>> anyway. If you're worried about the object changing, you might be able
>> to write it as "const stat@ other".
>>

Re: [Audyssey] bgt operator overloading question

[Aaron Baker]

Hi,
I don't really like to do code handouts. It isn't conducive to good
learning. Still, I'm vaguely interested in this since I myself have
not ever sorted strings alphabetically, so I will write something up
here.
This implementation may have errors. I tested it on six items with
various first letters and it worked great, but I may have not
accounted for some edge cases, who knows.
Here is the opCmp method you should use.
int opCmp(players_items@ other)
{
// Lowercase both strings so that uppercase lettered items do not
appear before lowercased ones.
string other_name=string_to_lower_case(other.name);
string original_name=string_to_lower_case(name);
// Now simply do comparisons as we would do on ints. Keep in mind this
deceptively simple action will take much longer than integer
comparison.
if(original_name>other_name)
return 1;
else if(original_name<other_name)
return -1;
else
return 0;
}
Best,
Aaron

On 2/19/16, Paul Lemm <paul.lem...@gmail.com> wrote:
> Hi Aaron,
>
> Thanks for the reply that makes sense. Sorry to be a pain I'm still not
> 100%
> sure though how  I'd  add that into  my code  so that I could get opCmp  to
> sort the array of class's alphabetically  by name. could I ask for an
> example using the below script  how you'd add that in  there to sort the
> array?
>
>
>
>  class players_items
>  {
>  string name;
>  players_items(string name)
> {
>  this.name = name;
> }
> }
>
> players_items@[] inventory;
>
>
> many thanks
>
>
> -Original Message-
> From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron Baker
> Sent: Friday, February 19, 2016 12:52 AM
> To: Gamers Discussion list
> Subject: Re: [Audyssey] bgt operator overloading question
>
> opCmp wants you to return a positive number if the source object is
> greater than the parameter passed, 0 if they are equal, and -1 if the
> source object is less than the parameter.
> You can use the less than and greater than operator on strings, so the
> rest should be obvious. One not so obvious complication is that this
> sort technique is case sensative, so make sure to unify the case by
> either uppercasing or lowercasing all characters.
> Best,
> Aaron
>
> On 2/18/16, Paul Lemm <paul.lem...@gmail.com> wrote:
>> Hi Aaron and John,
>>
>> This is something that has had me stuck for a while now.  As in a game I
>> have written, I have created a class, and then created an aray of that
>> class, but want to sort the array so it is alphabetical.  I've read  the
>> help topic on sorting arrays  which makes sense  for sorting an array of
>> strings , but I don't understand how I would get it to sort an array of
>> classes. The BGT help document just says you need to overload the
>> comparison
>> operator.   I've always been a little unclear on overloading operators
>> and
>> not sure how I would go about overloading the comparison operator in my
>> class. So using the basic class code below how would I go about
> overloading
>> the comparison operator and then sorting the array of that class
>> alphabetically by name?
>>
>> class players_items
>> {
>> string name;
>> string description;
>> bool key_item;
>> players_items(string name, string description, bool key_item)
>> {
>> this.name = name;
>> this.description = description;
>> this.key_item = key_item;
>> }
>> }
>>
>>
>> Players_items[] inventory;
>>
>> Many thanks for any help you can offer
>>
>> Paul
>>
>>
>>
>>
>>
>>
>> -Original Message-
>> From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron
>> Baker
>> Sent: Thursday, February 18, 2016 1:20 PM
>> To: Gamers Discussion list
>> Subject: Re: [Audyssey] bgt operator overloading question
>>
>> Hello,
>> Did you actually try it? I know that that can make the difference
>> between runtime error and no runtime error. I thought it was kind of
>> odd too, but it is usually bad practice to pass an object by value
>> anyway. If you're worried about the object changing, you might be able
>> to write it as "const stat@ other".
>> I really think that is the problem.
>> This code gives me a runtime error:
>> "
>> class stat
>> {
>> int percent;
>> int opCmp(stat other)
>> {
>> return percent-other.percent;
>> }
>> }
>> stat[] stats;
>> void main()
>> {
>> stats.sort_descending();
>> }
>> "
>>
>> And this code doesn't:
>> "
>> class stat
>> {
>> int percent;
>> int opCmp(stat

Re: [Audyssey] bgt operator overloading question

[Paul Lemm]

Hi Aaron,

Thanks for the reply that makes sense. Sorry to be a pain I'm still not 100%
sure though how  I'd  add that into  my code  so that I could get opCmp  to
sort the array of class's alphabetically  by name. could I ask for an
example using the below script  how you'd add that in  there to sort the
array?



 class players_items
 {
 string name;
 players_items(string name)
{ 
 this.name = name; 
} 
}

players_items@[] inventory;


many thanks


-Original Message-
From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron Baker
Sent: Friday, February 19, 2016 12:52 AM
To: Gamers Discussion list
Subject: Re: [Audyssey] bgt operator overloading question

opCmp wants you to return a positive number if the source object is
greater than the parameter passed, 0 if they are equal, and -1 if the
source object is less than the parameter.
You can use the less than and greater than operator on strings, so the
rest should be obvious. One not so obvious complication is that this
sort technique is case sensative, so make sure to unify the case by
either uppercasing or lowercasing all characters.
Best,
Aaron

On 2/18/16, Paul Lemm <paul.lem...@gmail.com> wrote:
> Hi Aaron and John,
>
> This is something that has had me stuck for a while now.  As in a game I
> have written, I have created a class, and then created an aray of that
> class, but want to sort the array so it is alphabetical.  I've read  the
> help topic on sorting arrays  which makes sense  for sorting an array of
> strings , but I don't understand how I would get it to sort an array of
> classes. The BGT help document just says you need to overload the
> comparison
> operator.   I've always been a little unclear on overloading operators and
> not sure how I would go about overloading the comparison operator in my
> class. So using the basic class code below how would I go about
overloading
> the comparison operator and then sorting the array of that class
> alphabetically by name?
>
> class players_items
> {
> string name;
> string description;
> bool key_item;
> players_items(string name, string description, bool key_item)
> {
> this.name = name;
> this.description = description;
> this.key_item = key_item;
> }
> }
>
>
> Players_items[] inventory;
>
> Many thanks for any help you can offer
>
> Paul
>
>
>
>
>
>
> -Original Message-
> From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron Baker
> Sent: Thursday, February 18, 2016 1:20 PM
> To: Gamers Discussion list
> Subject: Re: [Audyssey] bgt operator overloading question
>
> Hello,
> Did you actually try it? I know that that can make the difference
> between runtime error and no runtime error. I thought it was kind of
> odd too, but it is usually bad practice to pass an object by value
> anyway. If you're worried about the object changing, you might be able
> to write it as "const stat@ other".
> I really think that is the problem.
> This code gives me a runtime error:
> "
> class stat
> {
> int percent;
> int opCmp(stat other)
> {
> return percent-other.percent;
> }
> }
> stat[] stats;
> void main()
> {
> stats.sort_descending();
> }
> "
>
> And this code doesn't:
> "
> class stat
> {
> int percent;
> int opCmp(stat@ other)
> {
> return percent-other.percent;
> }
> }
> stat[] stats;
> void main()
> {
> stats.sort_descending();
> }
> "
> Best,
> Aaron
>
> On 2/18/16, john <jpcarnemo...@gmail.com> wrote:
>> Seems to be a nogo.
>> I'd be surprised if that was the issue; handles are close enough to
> objects
>>
>> for it to not matter as function parameters in my experience.
>>
>> --
>> From: "Aaron Baker" <theultimatemasterofarc...@gmail.com>
>> Sent: Wednesday, February 17, 2016 19:51
>> To: "Gamers Discussion list" <gamers@audyssey.org>
>> Subject: Re: [Audyssey] bgt operator overloading question
>>
>> Hey John,
>> Try switching your parameter from "stat other" to "stat@ other".
>> I think opCmp wants a handle (by reference), not a by value object.
>> Best,
>> Aaron
>>
>> On 2/17/16, john <jpcarnemo...@gmail.com> wrote:
>>> Hi all,
>>> I'm attempting to overload comparison operators in order to sort an
>>> array
>>>
>>> of
>>> objects, with the following function:
>>> //begin code
>>> int opCmp (stat other)
>>> {
>>> return percent-other.percent;
>>> }
>>> //end code
>>> However, the program gives me the following error as 

Re: [Audyssey] bgt operator overloading question

[Aaron Baker]

opCmp wants you to return a positive number if the source object is
greater than the parameter passed, 0 if they are equal, and -1 if the
source object is less than the parameter.
You can use the less than and greater than operator on strings, so the
rest should be obvious. One not so obvious complication is that this
sort technique is case sensative, so make sure to unify the case by
either uppercasing or lowercasing all characters.
Best,
Aaron

On 2/18/16, Paul Lemm <paul.lem...@gmail.com> wrote:
> Hi Aaron and John,
>
> This is something that has had me stuck for a while now.  As in a game I
> have written, I have created a class, and then created an aray of that
> class, but want to sort the array so it is alphabetical.  I've read  the
> help topic on sorting arrays  which makes sense  for sorting an array of
> strings , but I don't understand how I would get it to sort an array of
> classes. The BGT help document just says you need to overload the
> comparison
> operator.   I've always been a little unclear on overloading operators and
> not sure how I would go about overloading the comparison operator in my
> class. So using the basic class code below how would I go about overloading
> the comparison operator and then sorting the array of that class
> alphabetically by name?
>
> class players_items
> {
> string name;
> string description;
> bool key_item;
> players_items(string name, string description, bool key_item)
> {
> this.name = name;
> this.description = description;
> this.key_item = key_item;
> }
> }
>
>
> Players_items[] inventory;
>
> Many thanks for any help you can offer
>
> Paul
>
>
>
>
>
>
> -Original Message-
> From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron Baker
> Sent: Thursday, February 18, 2016 1:20 PM
> To: Gamers Discussion list
> Subject: Re: [Audyssey] bgt operator overloading question
>
> Hello,
> Did you actually try it? I know that that can make the difference
> between runtime error and no runtime error. I thought it was kind of
> odd too, but it is usually bad practice to pass an object by value
> anyway. If you're worried about the object changing, you might be able
> to write it as "const stat@ other".
> I really think that is the problem.
> This code gives me a runtime error:
> "
> class stat
> {
> int percent;
> int opCmp(stat other)
> {
> return percent-other.percent;
> }
> }
> stat[] stats;
> void main()
> {
> stats.sort_descending();
> }
> "
>
> And this code doesn't:
> "
> class stat
> {
> int percent;
> int opCmp(stat@ other)
> {
> return percent-other.percent;
> }
> }
> stat[] stats;
> void main()
> {
> stats.sort_descending();
> }
> "
> Best,
> Aaron
>
> On 2/18/16, john <jpcarnemo...@gmail.com> wrote:
>> Seems to be a nogo.
>> I'd be surprised if that was the issue; handles are close enough to
> objects
>>
>> for it to not matter as function parameters in my experience.
>>
>> --
>> From: "Aaron Baker" <theultimatemasterofarc...@gmail.com>
>> Sent: Wednesday, February 17, 2016 19:51
>> To: "Gamers Discussion list" <gamers@audyssey.org>
>> Subject: Re: [Audyssey] bgt operator overloading question
>>
>> Hey John,
>> Try switching your parameter from "stat other" to "stat@ other".
>> I think opCmp wants a handle (by reference), not a by value object.
>> Best,
>> Aaron
>>
>> On 2/17/16, john <jpcarnemo...@gmail.com> wrote:
>>> Hi all,
>>> I'm attempting to overload comparison operators in order to sort an
>>> array
>>>
>>> of
>>> objects, with the following function:
>>> //begin code
>>> int opCmp (stat other)
>>> {
>>> return percent-other.percent;
>>> }
>>> //end code
>>> However, the program gives me the following error as soon as comparison
>>> takes place:
>>> A runtime error occurred. File:function: void main()Description: Type
>>> 'stat'
>>> does not have a matching opCmp method
>>>
>>>
>>>
>>> Can anybody shed some light on this one?
>>>
>>>
>>>
>>> Thanks,
>>>
>>> John
>>>
>>>
>>>
>>> P.S:
>>>
>>> Yes, the comparison function is within the stat class, and comparison is
>>> being done by array.sort_descending.
>>>
>>> I have tried several case changes to the function name, and have stuc

Re: [Audyssey] bgt operator overloading question

[Paul Lemm]

Hi Aaron and John,

This is something that has had me stuck for a while now.  As in a game I
have written, I have created a class, and then created an aray of that
class, but want to sort the array so it is alphabetical.  I've read  the
help topic on sorting arrays  which makes sense  for sorting an array of
strings , but I don't understand how I would get it to sort an array of
classes. The BGT help document just says you need to overload the comparison
operator.   I've always been a little unclear on overloading operators and
not sure how I would go about overloading the comparison operator in my
class. So using the basic class code below how would I go about overloading
the comparison operator and then sorting the array of that class
alphabetically by name?

class players_items
{
string name;
string description;
bool key_item;
players_items(string name, string description, bool key_item)
{
this.name = name;
this.description = description;
this.key_item = key_item;
}
}


Players_items[] inventory;

Many thanks for any help you can offer

Paul 






-Original Message-
From: Gamers [mailto:gamers-boun...@audyssey.org] On Behalf Of Aaron Baker
Sent: Thursday, February 18, 2016 1:20 PM
To: Gamers Discussion list
Subject: Re: [Audyssey] bgt operator overloading question

Hello,
Did you actually try it? I know that that can make the difference
between runtime error and no runtime error. I thought it was kind of
odd too, but it is usually bad practice to pass an object by value
anyway. If you're worried about the object changing, you might be able
to write it as "const stat@ other".
I really think that is the problem.
This code gives me a runtime error:
"
class stat
{
int percent;
int opCmp(stat other)
{
return percent-other.percent;
}
}
stat[] stats;
void main()
{
stats.sort_descending();
}
"

And this code doesn't:
"
class stat
{
int percent;
int opCmp(stat@ other)
{
return percent-other.percent;
}
}
stat[] stats;
void main()
{
stats.sort_descending();
}
"
Best,
Aaron

On 2/18/16, john <jpcarnemo...@gmail.com> wrote:
> Seems to be a nogo.
> I'd be surprised if that was the issue; handles are close enough to
objects
>
> for it to not matter as function parameters in my experience.
>
> --
> From: "Aaron Baker" <theultimatemasterofarc...@gmail.com>
> Sent: Wednesday, February 17, 2016 19:51
> To: "Gamers Discussion list" <gamers@audyssey.org>
> Subject: Re: [Audyssey] bgt operator overloading question
>
> Hey John,
> Try switching your parameter from "stat other" to "stat@ other".
> I think opCmp wants a handle (by reference), not a by value object.
> Best,
> Aaron
>
> On 2/17/16, john <jpcarnemo...@gmail.com> wrote:
>> Hi all,
>> I'm attempting to overload comparison operators in order to sort an array
>>
>> of
>> objects, with the following function:
>> //begin code
>> int opCmp (stat other)
>> {
>> return percent-other.percent;
>> }
>> //end code
>> However, the program gives me the following error as soon as comparison
>> takes place:
>> A runtime error occurred. File:function: void main()Description: Type
>> 'stat'
>> does not have a matching opCmp method
>>
>>
>>
>> Can anybody shed some light on this one?
>>
>>
>>
>> Thanks,
>>
>> John
>>
>>
>>
>> P.S:
>>
>> Yes, the comparison function is within the stat class, and comparison is
>> being done by array.sort_descending.
>>
>> I have tried several case changes to the function name, and have stuck
>> with
>> the above because it matches both the manual and compiler error.
>> ---
>> Gamers mailing list __ Gamers@audyssey.org
>> If you want to leave the list, send E-mail to
>> gamers-unsubscr...@audyssey.org.
>> You can make changes or update your subscription via the web, at
>> http://audyssey.org/mailman/listinfo/gamers_audyssey.org.
>> All messages are archived and can be searched and read at
>> http://www.mail-archive.com/gamers@audyssey.org.
>> If you have any questions or concerns regarding the management of the
>> list,
>> please send E-mail to gamers-ow...@audyssey.org.
>>
>
> ---
> Gamers mailing list __ Gamers@audyssey.org
> If you want to leave the list, send E-mail to
> gamers-unsubscr...@audyssey.org.
> You can make changes or update your subscription via the web, at
> http://audyssey.org/mailman/listinfo/gamers_audyssey.org.
> All messages are archived and can be searched and read at
> http://www.mail-archive.com/gamers@audyssey.org.
> If you have any questions or concerns regarding the management of the
list,
>

Re: [Audyssey] bgt operator overloading question

[john]

After taking a closer look at the code, it appears my case changes were 
still in place. Setting it to a handle does indeed work, thanks for the 
help, and sorry for being that obtuse.

--
From: "Aaron Baker" <theultimatemasterofarc...@gmail.com>
Sent: Thursday, February 18, 2016 8:20
To: "Gamers Discussion list" <gamers@audyssey.org>
Subject: Re: [Audyssey] bgt operator overloading question

Hello,
Did you actually try it? I know that that can make the difference
between runtime error and no runtime error. I thought it was kind of
odd too, but it is usually bad practice to pass an object by value
anyway. If you're worried about the object changing, you might be able
to write it as "const stat@ other".
I really think that is the problem.
This code gives me a runtime error:
"
class stat
{
int percent;
int opCmp(stat other)
{
return percent-other.percent;
}
}
stat[] stats;
void main()
{
stats.sort_descending();
}
"

And this code doesn't:
"
class stat
{
int percent;
int opCmp(stat@ other)
{
return percent-other.percent;
}
}
stat[] stats;
void main()
{
stats.sort_descending();
}
"
Best,
Aaron

On 2/18/16, john <jpcarnemo...@gmail.com> wrote:
> Seems to be a nogo.
> I'd be surprised if that was the issue; handles are close enough to 
> objects
>
> for it to not matter as function parameters in my experience.
>
> --
> From: "Aaron Baker" <theultimatemasterofarc...@gmail.com>
> Sent: Wednesday, February 17, 2016 19:51
> To: "Gamers Discussion list" <gamers@audyssey.org>
> Subject: Re: [Audyssey] bgt operator overloading question
>
> Hey John,
> Try switching your parameter from "stat other" to "stat@ other".
> I think opCmp wants a handle (by reference), not a by value object.
> Best,
> Aaron
>
> On 2/17/16, john <jpcarnemo...@gmail.com> wrote:
>> Hi all,
>> I'm attempting to overload comparison operators in order to sort an array
>>
>> of
>> objects, with the following function:
>> //begin code
>> int opCmp (stat other)
>> {
>> return percent-other.percent;
>> }
>> //end code
>> However, the program gives me the following error as soon as comparison
>> takes place:
>> A runtime error occurred. File:function: void main()Description: Type
>> 'stat'
>> does not have a matching opCmp method
>>
>>
>>
>> Can anybody shed some light on this one?
>>
>>
>>
>> Thanks,
>>
>> John
>>
>>
>>
>> P.S:
>>
>> Yes, the comparison function is within the stat class, and comparison is
>> being done by array.sort_descending.
>>
>> I have tried several case changes to the function name, and have stuck
>> with
>> the above because it matches both the manual and compiler error.
>> ---
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Re: [Audyssey] bgt operator overloading question

[Aaron Baker]

Hello,
Did you actually try it? I know that that can make the difference
between runtime error and no runtime error. I thought it was kind of
odd too, but it is usually bad practice to pass an object by value
anyway. If you're worried about the object changing, you might be able
to write it as "const stat@ other".
I really think that is the problem.
This code gives me a runtime error:
"
class stat
{
int percent;
int opCmp(stat other)
{
return percent-other.percent;
}
}
stat[] stats;
void main()
{
stats.sort_descending();
}
"

And this code doesn't:
"
class stat
{
int percent;
int opCmp(stat@ other)
{
return percent-other.percent;
}
}
stat[] stats;
void main()
{
stats.sort_descending();
}
"
Best,
Aaron

On 2/18/16, john <jpcarnemo...@gmail.com> wrote:
> Seems to be a nogo.
> I'd be surprised if that was the issue; handles are close enough to objects
>
> for it to not matter as function parameters in my experience.
>
> --
> From: "Aaron Baker" <theultimatemasterofarc...@gmail.com>
> Sent: Wednesday, February 17, 2016 19:51
> To: "Gamers Discussion list" <gamers@audyssey.org>
> Subject: Re: [Audyssey] bgt operator overloading question
>
> Hey John,
> Try switching your parameter from "stat other" to "stat@ other".
> I think opCmp wants a handle (by reference), not a by value object.
> Best,
> Aaron
>
> On 2/17/16, john <jpcarnemo...@gmail.com> wrote:
>> Hi all,
>> I'm attempting to overload comparison operators in order to sort an array
>>
>> of
>> objects, with the following function:
>> //begin code
>> int opCmp (stat other)
>> {
>> return percent-other.percent;
>> }
>> //end code
>> However, the program gives me the following error as soon as comparison
>> takes place:
>> A runtime error occurred. File:function: void main()Description: Type
>> 'stat'
>> does not have a matching opCmp method
>>
>>
>>
>> Can anybody shed some light on this one?
>>
>>
>>
>> Thanks,
>>
>> John
>>
>>
>>
>> P.S:
>>
>> Yes, the comparison function is within the stat class, and comparison is
>> being done by array.sort_descending.
>>
>> I have tried several case changes to the function name, and have stuck
>> with
>> the above because it matches both the manual and compiler error.
>> ---
>> Gamers mailing list __ Gamers@audyssey.org
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>> gamers-unsubscr...@audyssey.org.
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>> list,
>> please send E-mail to gamers-ow...@audyssey.org.
>>
>
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Re: [Audyssey] bgt operator overloading question

[john]

Seems to be a nogo.
I'd be surprised if that was the issue; handles are close enough to objects 
for it to not matter as function parameters in my experience.

--
From: "Aaron Baker" <theultimatemasterofarc...@gmail.com>
Sent: Wednesday, February 17, 2016 19:51
To: "Gamers Discussion list" <gamers@audyssey.org>
Subject: Re: [Audyssey] bgt operator overloading question

Hey John,
Try switching your parameter from "stat other" to "stat@ other".
I think opCmp wants a handle (by reference), not a by value object.
Best,
Aaron

On 2/17/16, john <jpcarnemo...@gmail.com> wrote:
> Hi all,
> I'm attempting to overload comparison operators in order to sort an array 
> of
> objects, with the following function:
> //begin code
> int opCmp (stat other)
> {
> return percent-other.percent;
> }
> //end code
> However, the program gives me the following error as soon as comparison
> takes place:
> A runtime error occurred. File:function: void main()Description: Type 
> 'stat'
> does not have a matching opCmp method
>
>
>
> Can anybody shed some light on this one?
>
>
>
> Thanks,
>
> John
>
>
>
> P.S:
>
> Yes, the comparison function is within the stat class, and comparison is
> being done by array.sort_descending.
>
> I have tried several case changes to the function name, and have stuck 
> with
> the above because it matches both the manual and compiler error.
> ---
> Gamers mailing list __ Gamers@audyssey.org
> If you want to leave the list, send E-mail to
> gamers-unsubscr...@audyssey.org.
> You can make changes or update your subscription via the web, at
> http://audyssey.org/mailman/listinfo/gamers_audyssey.org.
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> http://www.mail-archive.com/gamers@audyssey.org.
> If you have any questions or concerns regarding the management of the 
> list,
> please send E-mail to gamers-ow...@audyssey.org.
>

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Re: [Audyssey] bgt operator overloading question

[Aaron Baker]

Hey John,
Try switching your parameter from "stat other" to "stat@ other".
I think opCmp wants a handle (by reference), not a by value object.
Best,
Aaron

On 2/17/16, john  wrote:
> Hi all,
> I'm attempting to overload comparison operators in order to sort an array of
> objects, with the following function:
> //begin code
> int opCmp (stat other)
> {
> return percent-other.percent;
> }
> //end code
> However, the program gives me the following error as soon as comparison
> takes place:
> A runtime error occurred. File:function: void main()Description: Type 'stat'
> does not have a matching opCmp method
>
>
>
> Can anybody shed some light on this one?
>
>
>
> Thanks,
>
> John
>
>
>
> P.S:
>
> Yes, the comparison function is within the stat class, and comparison is
> being done by array.sort_descending.
>
> I have tried several case changes to the function name, and have stuck with
> the above because it matches both the manual and compiler error.
> ---
> Gamers mailing list __ Gamers@audyssey.org
> If you want to leave the list, send E-mail to
> gamers-unsubscr...@audyssey.org.
> You can make changes or update your subscription via the web, at
> http://audyssey.org/mailman/listinfo/gamers_audyssey.org.
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> http://www.mail-archive.com/gamers@audyssey.org.
> If you have any questions or concerns regarding the management of the list,
> please send E-mail to gamers-ow...@audyssey.org.
>

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[Audyssey] bgt operator overloading question

[john]

Hi all,
I'm attempting to overload comparison operators in order to sort an array of 
objects, with the following function:
//begin code
int opCmp (stat other)
{
return percent-other.percent;
}
//end code
However, the program gives me the following error as soon as comparison takes 
place:
A runtime error occurred. File:function: void main()Description: Type 'stat' 
does not have a matching opCmp method



Can anybody shed some light on this one?



Thanks,

John



P.S:

Yes, the comparison function is within the stat class, and comparison is being 
done by array.sort_descending.

I have tried several case changes to the function name, and have stuck with the 
above because it matches both the manual and compiler error.
---
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