How to use find() to find a struct member in vector?

First, use the proper algorithm, search() is used to find subsequences: http://www.sgi.com/tech/stl/search.html
find() is what you're looking for when searching for 1 element: http://www.sgi.com/tech/stl/find.html

Next, your MatchMember is not (necessarily) correct when comparing strings:

Code:

---

bool MatchMember(member m1, member m2)
{
        return strcmp(m1.name,m2.name)&&m1.age==m2.age&&m1.sex==m2.sex;
}

---

strcmp returns 0 when both strings are equal, however, 0 is also considered false. So when both strings are equal, your function is returning 0, indicating false, meaning no match. To correct, negate the string comparison result.

My code works ok, it's just that you wrote the MatchMember the wrong way:

Code:

---

bool MatchMember(member m1, member m2)
{
  return strcmp(m1.name,m2.name) ==0 && m1.age==m2.age && m1.sex==m2.sex;
}

---

Why don't you use std::string instead of char[]?