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| -rw-r--r-- | lib/collections.hpp | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/collections.hpp b/lib/collections.hpp index ad4d947..5f4be68 100644 --- a/lib/collections.hpp +++ b/lib/collections.hpp @@ -12,3 +12,24 @@ operator+(const std::array<T, first> & a, const std::array<T, second> & b) std::copy(b.begin(), b.end(), out); return r; } + +template<typename T, std::size_t N> +auto +operator*(const std::array<T, N> & in, auto && f) +{ + std::array<decltype(f(in[0])), N> out; + + for (auto outitr = out.begin(); const auto & v : in) { + *outitr++ = f(v); + } + return out; +} + +template<typename T, std::size_t N> +auto & +operator*=(std::array<T, N> & in, auto && f) +{ + for (const auto & v : in) { + f(v); + } +} |