多次元配列の受け渡し

明解Ｃ言語入門編 > 6. 関数 >

Ruby

def mat_add(a, b, c)
    for i in 0..1
        for j in 0..2
            c[i][j] = a[i][j] + b[i][j]
        end
    end
end

ma  = [[1, 2, 3], [4, 5, 6]]
mb  = [[6, 3, 4], [5, 1, 2]]
mc  = [[], []]

mat_add(ma, mb, mc)

for i in 0..1
    for j in 0..2
        printf("%3d", mc[i][j])
    end
    puts ""
end

実行結果



L:\>ruby  l:\lesson_06_051.rb

  7  5  7

  9  6  8