| |
1 |
1 |
#include "stdafx.h" |
| |
2 |
2 |
#include "MathFunctions.h" |
| |
3 |
3 |
#include <boost/numeric/conversion/cast.hpp> |
| |
4 |
4 |
|
| |
5 |
5 |
namespace chcore |
| |
6 |
6 |
{ |
| |
7 |
7 |
namespace Math |
| |
8 |
8 |
{ |
| |
9 |
9 |
double Div64(unsigned long long ullNumber, unsigned long long ullDenominator) |
| |
10 |
10 |
{ |
| |
11 |
11 |
if (ullDenominator == 0) |
| |
12 |
12 |
return 0.0; |
| |
13 |
13 |
|
| |
14 |
|
const unsigned long long ullMaxInt32 = (unsigned long long)std::numeric_limits<int>::max(); |
| |
15 |
|
while (ullNumber > ullMaxInt32 || ullDenominator > ullMaxInt32) |
| |
16 |
|
{ |
| |
17 |
|
ullNumber >>= 1; |
| |
18 |
|
ullDenominator >>= 1; |
| |
|
14 |
return (double)ullNumber / (double)ullDenominator; |
| |
19 |
15 |
} |
| |
20 |
16 |
|
| |
21 |
|
return boost::numeric_cast<double>(ullNumber) / boost::numeric_cast<double>(ullDenominator); |
| |
|
17 |
LIBCHCORE_API double Div64(unsigned long long ullNumber, double dDenominator) |
| |
|
18 |
{ |
| |
|
19 |
return ullNumber / dDenominator; |
| |
22 |
20 |
} |
| |
23 |
21 |
} |
| |
24 |
22 |
} |
