Dec.28.2018 -- CAlive to add operator -%, a range-aware modulo operator

[Rick C. Hodgin]

CAlive will introduce a new range-aware modulo operator using -%.  This new operator will use the positive % operator using the same pattern as is seen in positive integers even when the input goes negative.  It performs the following range_modulo() operation:

    // v=value, m=modulo number

    function range_modulo

    | params int v, int m

    | returns r

    {

        if (v >= 0)    r = v % m;

        else           r = (m + (v % m)) % m;

    }

    // Use in code

    function main

    | params int argc, char* argv[]

    {

        for (int i = 12; i > -22; --i)

        {

            printf("%d --> range_modulo = (%d), -% = (%d)\n",

                   i,

                   range_modulo(i, 10),

                   i -% 10);

        }

    }

-- 

Rick C. Hodgin