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u128: Implement comparison operators in terms of one another

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We can just implement the comparisons in terms of operator< and
implement inequality with the negation of operator==.
This commit is contained in:
Lioncash 2018-07-23 15:11:59 -04:00 committed by Merry
parent 3b77f48a76
commit 1ee16303bd
1 changed files with 4 additions and 4 deletions
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8
src/common/u128.h
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@ -69,15 +69,15 @@ inline bool operator<(u128 a, u128 b) {
}
inline bool operator>(u128 a, u128 b) {
return std::tie(a.upper, a.lower) > std::tie(b.upper, b.lower);
return operator<(b, a);
}
inline bool operator<=(u128 a, u128 b) {
return std::tie(a.upper, a.lower) <= std::tie(b.upper, b.lower);
return !operator>(a, b);
}
inline bool operator>=(u128 a, u128 b) {
return std::tie(a.upper, a.lower) >= std::tie(b.upper, b.lower);
return !operator<(a, b);
}
inline bool operator==(u128 a, u128 b) {
@ -85,7 +85,7 @@ inline bool operator==(u128 a, u128 b) {
}
inline bool operator!=(u128 a, u128 b) {
return std::tie(a.upper, a.lower) != std::tie(b.upper, b.lower);
return !operator==(a, b);
}
u128 operator<<(u128 operand, int amount);