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NINTENDO
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 Posted: Tue Apr 21, 2009 2:15 am Post subject: custom operator |
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Hey there.
I tried to overload an operator but it freaked out on me so how do I create a new one?
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Zerith
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| Posted: Tue Apr 21, 2009 3:04 am Post subject: |
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| you can't create a fully new operator, though you can overload one only for classes,enums etc. not native types.
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NINTENDO
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| Posted: Tue Apr 21, 2009 3:44 am Post subject: |
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| Zerith wrote: | | you can't create a fully new operator, though you can overload one only for classes,enums etc. not native types. |
the operator i want to overload aint overloadable so that's not an option.
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Zerith
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| Posted: Tue Apr 21, 2009 4:25 am Post subject: |
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| what do you mean isn't overloadable? everything is overloadable.
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NINTENDO
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| Posted: Tue Apr 21, 2009 7:16 am Post subject: |
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| Zerith wrote: | | what do you mean isn't overloadable? everything is overloadable. |
Oh, great. Is that why visual studio told me that it isn't overloadable? I'll try again.
Edit :
What is this! Now i get other errors.
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Zerith
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| Posted: Tue Apr 21, 2009 8:42 am Post subject: |
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| wallantia wrote: | | Zerith wrote: | | what do you mean isn't overloadable? everything is overloadable. |
Oh, great. Is that why visual studio told me that it isn't overloadable? I'll try again.
Edit :
What is this! Now i get other errors. |
Posting your code and errors will assist us in helping you.
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Flyte
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| Posted: Tue Apr 21, 2009 12:16 pm Post subject: |
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| Zerith wrote: | | what do you mean isn't overloadable? everything is overloadable. |
Not everything. Here is a list.
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pkedpker
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| Posted: Tue Apr 21, 2009 12:28 pm Post subject: |
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personally I hate C++ because of the overloading its making programming not what it should be.. thats why C is the best language to program in my opinion.
Anyways he is a example of me overloading the () operator
| Code: |
struct Stride
{
int stride;
int NumVertices;
int primCount;
//int startIndex;
bool operator()(Stride& strStart, strStride& End)
{
return strStart.stride < strEnd.stride;
}
};
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vector<Stride> strides;
now when you call Stride() in the sort method which uses vectors it will sort it in increasing order because of the < check
sort(strides.begin(), strides.end(), Stride());
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Jani
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| Posted: Wed Apr 22, 2009 2:09 am Post subject: |
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| pkedpker wrote: | | Code: | struct Stride
{
...
} |
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Structs are not allowed to have member functions, only classes. C++ might allow member functions in structs, but I'm not sure, just use classes and the case is solved.
| pkedpker wrote: | | now when you call Stride() in the sort method which uses vectors it will sort it in increasing order because of the < check |
Make sure you don't get confused between your overloaded operator and the constructor :) You should be doing
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