带有自定义比较器的 C++ std::find

Question

这基本上是我想做的:

bool special_compare(const string& s1, const string& s2)
{
    // match with wild card
}

std::vector<string> strings;

strings.push_back("Hello");
strings.push_back("World");

// I want this to find "Hello"
find(strings.begin(), strings.end(), "hell*", special_compare);

// And I want this to find "World"
find(strings.begin(), strings.end(), "**rld", special_compare);

但不幸的是，std::find 不能那样工作。那么只使用 STL，我怎么能做这样的事情呢？

Answer 1

根据您的评论，您可能正在寻找以下内容:

struct special_compare : public std::unary_function<std::string, bool>
{
  explicit special_compare(const std::string &baseline) : baseline(baseline) {}
  bool operator() (const std::string &arg)
  { return somehow_compare(arg, baseline); }
  std::string baseline;
}

std::find_if(strings.begin(), strings.end(), special_compare("hell*"));