| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | #pragma once | ||
| 2 | |||
| 3 | /** @private */ | ||
| 4 | namespace CXXIter::util { | ||
| 5 | |||
| 6 | //TODO: unit-tests | ||
| 7 | |||
| 8 | /** @private */ | ||
| 9 | template<typename T> | ||
| 10 | struct SaturatingArithmetic { | ||
| 11 | T value; | ||
| 12 | 72 | SaturatingArithmetic(T value) : value(value) {} | |
| 13 | 24 | T get() const { return value; } | |
| 14 | |||
| 15 | 48 | SaturatingArithmetic<T> operator+(T o) { | |
| 16 | 48 | T res = value + o; | |
| 17 | 48 | res |= -(res < value); | |
| 18 | 48 | return res; | |
| 19 | } | ||
| 20 | SaturatingArithmetic<T> operator-(T o) { | ||
| 21 | T res = value - o; | ||
| 22 | res &= -(res <= value); | ||
| 23 | return res; | ||
| 24 | } | ||
| 25 | SaturatingArithmetic<T> operator/(T o) { | ||
| 26 | return value / o; | ||
| 27 | } | ||
| 28 | }; | ||
| 29 | |||
| 30 | } | ||
| 31 |