这似乎像find_if完全一样.
说我有一个函子：function< bool(int)> FOO;
和一个数组：vector< int>酒吧;
看来这两个电话是完全一样的：
any_of(bar.begin(),bar.end(),foo);
和
bar.end() != find_if(bar.begin(),foo);
我进一步感觉,all_of和none_of可以通过否定find_if语句来实现.
这些算法正是在这里做比较才能为我们结束,还是有一个有用的我不明白？
解决方法
These three algorithms provide the ordinary mathematical operations ∀,∃,and ∄: given a
range and a predicate,determine whether that predicate is true for all elements; whether
there exists an element for which the predicate is true; or whether there exist no elements
for which the predicate is true. Strictly speaking there is no need to provide all three of
these algorithms (!none_ofandany_ofare equivalent),but all three of these operations
feel equally fundamental.
这些名称比包含find_if和(in)等式的表达更自然,更容易阅读(肯定是非专家C程序员).
all_of(first,last,pred)是return last == std :: find_if_not(first,pred);
none_of(first,pred)是return last == std :: find_if(first,pred);
any_of(first,pred)是return！none_of(first,pred);
