Unable to understand the code fragement

[shan_rish]

Hi Group,

I am not able to understand the following code fragement (a return
statement of a function). bsearch is a binary search function and the
(CompareFunction)RnDtsComparitor) parameter is the one which i dont
understand. Any help is appreciated.


//typedefed in a seperate file
typedef int (*CompareFunction)(const void*,const void*);

//Doubt fragement
return (RnDts*) bsearch(&key,
TrffDt.RnDtsDt,
TrffDt.cnt[RNDTCNT],
sizeof(RnDts),
(CompareFunction)RnDtsComparitor);

I dont know if any other information is needed. If needed i will post
the needed information also.
Cheers
Shan

 

[Srini]

Hi Group,

I am not able to understand the following code fragement (a return
statement of a function). bsearch is a binary search function and the
(CompareFunction)RnDtsComparit­or) parameter is the one which i dont
understand. Any help is appreciated.

It is a pointer to a function that would be used by 'bsearch' to
compare 2 values while doing the sort. Provision to provide a
comparison function through a function pointer is what makes it
possible to sort different types of data.

Srini

 

[shan_rish]

Thanks...
Cheers
Shan

It is a pointer to a function that would be used by 'bsearch' to
compare 2 values while doing the sort. Provision to provide a
comparison function through a function pointer is what makes it
possible to sort different types of data.

Srini

 

[shan_rish]

It is a pointer to a function that would be used by 'bsearch' to
compare 2 values while doing the sort. Provision to provide a
comparison function through a function pointer is what makes it
possible to sort different types of data.

Srini

Thanks...
Cheers
Shan