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# C++/c++ searching

Question
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Followup To
Question -
hey, how r u?

I am a beginner to c++  and have a question about hash searching in C++ that i was hoping you'd be able to assist me with.

I am using Microsoft visual studio, and am attempting to do the following:

1. create a hash key using modulo-division method
2. provide a function that will handle collisions (ie. i think  linear probing?)

Any assistance is greatly appreciated.

Regards,
Flora
Hello Flora, thank you for the question.

Creating a hash key with the modulous operator is fairly easy. But, just to ensure I understand you comepletely, do you think you could please explain to me what you mean by linear probing as a collision algorithm? That's a new one to me.

Thanks,

- Eddie

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hi, thank you for your quick reply. I can see how my question was a bit confusing. I was referring to the open addressing mthod, and in particular to the linear probe where if a collision occurs, its resolved by adding 1 to the current address until an empty position is found.

I have already qritten up both the hash and collision functions, i'm just unsure of how to use them in my program. Ie. how do i say that "if a collision has occurred, implement collision function" (i am hashing an array of integers). I hope this clarifies things.

If not, that's ok.

Thanks very much.

Regards,
Flora

Hello Flora, thanks again for the question.

I noticed that your original question was

1. create a hash key using modulo-division method
2. provide a function that will handle collisions (ie. i think linear probing?),

Now you state that "I have already qritten up both the hash and collision functions". Is your question that you don't know how to actually determine if a collision has occured? I'm still unsure of this linear probing algorithm of which you speak. If you could perhaps post some code it would be extremely appreciated.

Sorry this is being such a hassle.

- Eddie
Questioner's Rating
 Rating(1-10) Knowledgeability = 7 Clarity of Response = 9 Politeness = 10 Comment Thank you very much, Eddie. That is the exact information that i have requested. Thank you so much

C++

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#### Eddie

##### Expertise

I can answer questions about the C++ language, object oriented design and architecture. I am knowledgable in a lot of the math that goes into programming, and am certified by ExpertRating.com. I also know a good deal about graphics via OpenGL, and GUIs.

##### Experience

I have completed numerous games and demos created with the C++ programming language. Currently employed as a software engineer in the modeling and simulation field. I have about 7 years experience.