function

[bluecoder]

HI ,
Can some one explain me what this function do . i am not able to understand what exactly the function do and how

int function( const void* x , const void* y)
{
   char* c1 = (char*) x; 
   char* y1 = (char*) y;
return *c1 - *y1;

}

Thanks in advance
blue.

[Athar]

It returns the difference of the two bytes stored at those addresses.

[Duthomhas]

Did you find this with an example of using qsort() somewhere?
You can read more about it here, plus a number of examples:
http://www.cplusplus.com/faq/sequences/sequencing/sort-stuff/#c