simple C++ question about searching an array

I have a problem am a beginer at c++, am trying to lenear search my array in a function, the search always gives me the same result i wonder if am doing anything.

int searchid(float arr[], int n,int check)
{
for(int i = 0; i < n; i++)
if (arr[i] == check) return i;
return -1;
}

this is my function is passing a one dimensional array, its lenght as n, and a value which is the number (check) am trying to find within the array. any help would be greatly appresiated.

Looks ok to me but the array is a float array and you check is an int which probably isn't good.

-KM-