From: FlSt@gmx.de
Pavel Vozenilek wrote:
"Rob Stewart" wrote
I didn't find time to study neither of the current implementations (you both code faster than I can read ;-) so I am bit confused by the difference between "each" and "all".
When I wouln't know the implementation I would be also confused. each_of means the same like not_all_of in my implementation.
My suggestion for each_of was to handle the situation in which each could match independently, whereas with all_of, each must match the same other value. IOW, given ranges L and R, each_of(L) == any_of(R) means that each value in L may match any value in R, whereas all_of(L) == any_of(R) means each value in L must match any single value in R. Thus, if L[n] == R[m] for any n in L and m in R, each_of(L) == any_of(R) is true. However, for all_of(L) == any_of(R), all values of L must equal R[m] for any m in R. Does that make sense?
"all_except_one" is quite common situation which may be considered too.
This is also the same like not_all_of
No. "all_except_one," or maybe "all_but_one," means exactly N - 1 matches, where N is the length of the range. -- Rob Stewart stewart@sig.com Software Engineer http://www.sig.com Susquehanna International Group, LLP using std::disclaimer;