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new coord stuff from 09

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This commit is contained in:
Eric Mertens 2023-01-23 14:46:01 -06:00
parent a6d7a81ce1
commit e67df73b3a
2 changed files with 12 additions and 0 deletions
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8
lib/include/aocpp/Coord.hpp
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@ -41,8 +41,16 @@ auto CCW(Coord) -> Coord;
auto Turn180(Coord) -> Coord; auto Turn180(Coord) -> Coord;
/// @brief Computes the "1 norm" of a coordinate as a vector
/// @param vector
/// @return Sum of magnitudes of components
auto Norm1(Coord) -> std::int64_t; auto Norm1(Coord) -> std::int64_t;
/// @brief Computes the "infinity norm" of a coordinate as a vector
/// @param vector
/// @return Magnitude of the largest component
auto NormInf(Coord) -> std::int64_t;
/// Add two coordinates pairwise /// Add two coordinates pairwise
auto operator+(Coord, Coord) -> Coord; auto operator+(Coord, Coord) -> Coord;

4
lib/src/Coord.cpp
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@ -73,6 +73,10 @@ auto Norm1(Coord c) -> std::int64_t {
return std::abs(c.x) + std::abs(c.y); return std::abs(c.x) + std::abs(c.y);
} }
auto NormInf(Coord c) -> std::int64_t {
return std::max(std::abs(c.x), std::abs(c.y));
}
auto operator+(Coord a, Coord b) -> Coord { auto operator+(Coord a, Coord b) -> Coord {
return {a.x + b.x, a.y + b.y}; return {a.x + b.x, a.y + b.y};
} }