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  1. :rss: Hacker News @[email protected] ·

    3rd Edition of Programming: Principles and Practice Using C++ by Stroustrup
    stroustrup.com/programming.htm
    #ycombinator #Programming_Principles_and_Practice_Using_C #Bjarne_Stroustrup #C #text_book #object_oriented_programming #design #generic_programming #programming

    #ycombinator #programming_principles_and_practice_using_c #bjarne_stroustrup #c #text_book #object_oriented_programming
  2. :rss: Hacker News @[email protected] ·

    3rd Edition of Programming: Principles and Practice Using C++ by Stroustrup
    stroustrup.com/programming.htm
    #ycombinator #Programming_Principles_and_Practice_Using_C #Bjarne_Stroustrup #C #text_book #object_oriented_programming #design #generic_programming #programming

    #ycombinator #programming_principles_and_practice_using_c #bjarne_stroustrup #c #text_book #object_oriented_programming
  3. namark @[email protected] ·

    Considering a generic function, that accepts a count of numbers (usual + - * / algebra) and returns their average (sum over count), what requirements make sense to be imposed on the number to allow division by count?

    (count is 2 in example pseudo code)

    1. explicit construction from a single natural number:
    (n1 + n2)/number(2)

    2. straight up a division operator that accepts a natural number as second argument:
    (n1 + n2)/2

    3. multiplication identity constructor/value that can be accumulated (using addition) to reach count:
    (n1 + n2)/(number::one + number::one)

    4. addition operator that accepts a natural number as second argument (assuming zero/default constructor available):
    (n1 + n2)/(number() + 2)

    #cpp #programming #generic_programming

    #generic_programming #programming #cpp