Am Wed, 08 Aug 2012 11:40:10 -0700 schrieb Walter Bright <newshou...@digitalmars.com>:
> > Take a look at the reduce function in > http://dlang.org/phobos/std_algorithm.html#reduce > > It has provision for an initial state that can be the current running > total. > This can only work if the final state is valid as an initial state. This is just not true for some hash algorithms. --- auto sum = reduce!("a + b")(0, range); auto sum2 = reduce!("a + b")(sum, range2); --- --- MD5 hash; hash.start(); auto sum = copy(range, hash); auto sum2 = copy(range2, sum); auto result = hash.finish(); --- No where's the difference, except that for hashes the context ('hash') has to be setup and finished manually?