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From: Bill Seymour (bsey_at_[hidden])
Date: 2001-03-04 09:06:54

For my newbie submission to Boost, I have:

template<class T, bool Dp = false>
struct integer_division_traits
    typedef /* unsigned members iff T is unsigned type */ div_t;
    static div_t div(T dividend, T divisor);

    static T gcd(T, T); // greatest common divisor
    static T lcm(T, T); // least common multiple

    static T floor(T dividend, T divisor);
    static T ceil (T dividend, T divisor);
    static T trunc(T dividend, T divisor); // toward zero

    enum rounding_mode
        // other obvious ones
    static T round(T dividend, T divisor,
                   rounding_mode = nearest_even);

    // other minor stuff

The second template argument indicates whether a signed divisor
is known to be > 0, for example, in a rational number class that
eagerly keeps its denominator positive. It has no effect iff
T is an unsigned type.

I'm in the process of Boostifying the documentation, and expect
to have a package ready to upload by the middle of the week
if there's sufficient interest.


--Bill Seymour

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