biggies()函数在主程序同一个文件内定义的话会被当成重载,而elimDups()函数则不会,难道是因为elimDups()函数没有在主程序中调用吗?同时如果将biggies()函数放到另一个文件中定义就不会出现上面的问题。
#include <iostream>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;
void elimDups(vector<string>& words);
void biggies(vector <string>& words, vector<string>::size_type sz);
int main(void)
{
vector<string> words = { "the","quick","red","fox","jumps","over","the","slow","red","turtle" };
auto sz = 4;
biggies(words,sz);
return 0;
}
void biggies(vector<string> words, vector<string>::size_type sz)
{
elimDups(words);
stable_sort(words.begin(), words.end(), [](const string& a, const string& b) {return a.size() < b.size(); });
auto wc = find_if(words.begin(), words.end(), [sz](const string &a) {return a.size() >= sz; });
for_each(wc, words.end(), [](const string& s) {cout << s << " "; });
cout << endl;
}
void elimDups(vector<string>& words)
{
sort(words.begin(), words.end());
auto unique_end = unique(words.begin(), words.end());
words.erase(unique_end, words.end());
}