### ambiguous error (3d distance calculator)

closed account (D2yM4iN6)
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Last edited on
Try changing
`#include<math.h> ` to `#include<cmath> `.
It may be due to math.h containg only abs(int) overload of this function.
You need to replace `cdist = max(x,y,z)` with a comparison.
 ``12345678910111213`` ``````if(x >= y) //Find the greater of x and y { max = x;//If x is the max (or they are equal) } else //Otherwise { max = y; //If y is the max } if(z > max) //Compare z to the largest of x and y. { max = z; } cdist = max;``````
There's an interesting version of max() declared in the C++11 <algorithm> header. Notice line 24 in particular.
 ``1234567891011121314151617181920212223242526272829`` ``````#include #include #include #include #include using namespace std; int main() { srand (time(NULL)); for (int i=0; i<10; i++) { int x = rand()%100; int y = rand()%100; int z = rand()%100; cout << setw(4) << x << setw(4) << y << setw(4) << z << " max = " << setw(4) << max(max(x, y), z) // call max twice << " max2 = " << setw(4) << max({x, y, z}) // call max with initialiser list << endl; } return 0; }``````

Output:
 ``` 93 5 7 max = 93 max2 = 93 85 46 17 max = 85 max2 = 85 77 48 42 max = 77 max2 = 77 38 14 73 max = 73 max2 = 73 84 57 69 max = 84 max2 = 84 12 89 32 max = 89 max2 = 89 82 72 19 max = 82 max2 = 82 32 12 70 max = 70 max2 = 70 39 19 66 max = 66 max2 = 66 98 26 0 max = 98 max2 = 98 ```

http://www.cplusplus.com/reference/algorithm/max/
http://www.cplusplus.com/reference/initializer_list/initializer_list/
closed account (D2yM4iN6)
thank you all, especially with the example!! It helped me alot and was able to understand much more clear with the concept of max()
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