bool test(string &s) { return s.empty();}
看到c++ primer上的一道小习题，说这个程序虽合法但可用性不好？并修改
但我想不明白为什么？请大家畅所欲言，多多指教

用一个s.empty();就可以达到判空的目的了，那个test()没必要吧

I think so like as wangxiang has said.

first, this test function is not neccessary , because this function just involke the function "empty". Usually when you write a function, which is actuelly provide some functionality more than some else, then you can write it. Otherwise, you need just involke the function, what is already there.

second, when you write some function, you should try to realise, that the name of function should be explainable, that mean, someoneelse can also direct know what you will do with this function by name reading without a document to read.

kai是因为在学习英语吗？只见你用英语回答啊~！

I can not type chinese on this laptop.

[此贴子已经被作者于2006-6-30 13:32:17编辑过]

thanks everybody~

make the keyword "involke" instead to "invoke"