摘要： 错误程序：#include <iostream> #include <vector> using namespace std; struct A { int x; A(int y) {x = y;} }; int main() { A a(11217); vector<A> V; V.push_back(a); vector<A>::iterator it = V.begin(); A *p = it; return 0; }编译报错：error: cannot convert 'std::vector<A>::iterat. 阅读全文

摘要： 错误程序：#include <iostream> using namespace std; void func(int& a[], int n) { for(int i = 0; i < n; i++) a[i]++; } int main() { int a[3] = {1, 2, 3}; func(a, 3); cout << a[0] << ' ' << a[1] << ' ' << a[2] << endl; return 0; } 初衷：通过建立引用型形参 阅读全文