template<class InIt, class OutIt, class Pred, class T>
OutIt replace_copy_if(InIt first, InIt last, OutIt x,
Pred pr, const T& val);
The template function executes the statement:
if (pr(*(first + N)))
*(x + N) = val;
else
*(x + N) = *(first + N)
once for each N in the range [0, last - first).
If x and first designate regions of storage, the range [x, x + (last - first)) must not overlap the range
[first, last).
See the related sample program.