table is an array of 3 which stores three rows of each file
it returns the dmallest id
why they use
for what purposeCode:*index=i;
??
Code:int getMin(int eof[],vote table[],int *index){ int i,idmin; for(i=0,idmin=999999999;i<3;i++) if(eof[i]!=EOF && table[i].id<idmin){ idmin=table[i].id; *index=i; } return idmin; }
index is a pointer, it holds a memory location
*index = i puts i inside the memory location index is pointing to
for example
the output will be : 7Code:int main() { int bar = 4; int *foo = &bar; *foo = 7; printf("%d", bar); return 0; }
it also allows the manipulation of variables outside the scope of the subroutine
Last edited by ಠ_ಠ; 04-05-2009 at 04:21 PM.
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Well, I suppose the the logic is very simple. Since the function cant return more than one value. But the person who coded it looks like the that he wanted the index value if the table of where the min value was found. And that he is doing. As soon the min value is found, it function also return the index value of where the min value was found in tables array.
-ssharish
Life is like riding a bicycle. To keep your balance you must keep moving - Einstein
