typename _TransformIterT<IT,FUN>::Iter
transform (IT const& source, FUN processingFunc)
{
typedef typename _TransformIterT<IT,FUN>::ResVal ValType;
typedef typename _TransformIterT<IT,FUN>::TransIter TransIT;
return IterSource<ValType>::build (
new WrappedLumieraIterator<TransIT> (
transformIterator (source, processingFunc)));
}
/** @test verify delimiter separated joining of arbitrary collections.
* - the first test uses a STL container, which means we need to wrap
* into a lib::RangeIter. Moreover, lexical_cast is used to convert
* the double numbers into strings.
* - the second test uses an inline transforming iterator to build a
* series of AutoCounter objects, which provide a custom string
* conversion function. Moreover, since the transforming iterator
* conforms to the Lumiera Forward Iterator concept, we can just
* move the rvalue into the formatting function without much ado
*/
void
checkStringJoin()
{
vector<double> dubious;
for (uint i=0; i<10; ++i)
dubious.push_back(1.1*i);
std::function<AutoCounter(double)> justCount = [](double d){ return AutoCounter(d); };
cout << join(dubious, "--+--") << endl;
cout << join(transformIterator(eachElm(dubious)
,justCount)) << endl;
}
