transformnames.cpp

来自「C++编程思想第二版第一册答案」· C++ 代码 · 共 29 行

//: C21:TransformNames.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// More use of transform()
#include "Inventory.h"
#include "PrintSequence.h"
#include <vector>
#include <algorithm>
#include <cctype>
using namespace std;

struct NewImproved {
  Inventory operator()(const Inventory& inv) {
    return Inventory(toupper(inv.getItem()), 
      inv.getQuantity(), inv.getValue());
  }
};

int main() {
  vector<Inventory> vi;
  generate_n(back_inserter(vi), 15, InvenGen());
  print(vi, "vi");
  transform(vi.begin(), vi.end(), vi.begin(),
    NewImproved());
  print(vi, "vi");
} ///:~