STLSourceCodeNote/1_STL_introduction/1_9_1_config8.cpp at master · pythonkd/STLSourceCodeNote

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// file: 1config8.cpp

// 测试 class template之内可否再有 template (members).

// test __STL_MEMBER_TEMPLATES in <stl_config.h>

// ref. C++ Primer 3/e, p.844

// vc6[o] cb4[o] gcc[o]

// 如果编译器支持template members of classes（模板类内嵌套模板）就定义。

#include <iostream>

using namespace std;

class alloc {

};

template <class T, class Alloc=alloc>

class vec {

public:

typedef T value_type;

typedef value_type* iterator; // 迭代器为指针

// typedef T *iterator; // 直接定义也可

template <class I> // 模板嵌套模板

void insert(iterator position, I first, I last) {

cout << "insert()" << endl;

}

};

int main() {

int ia[5] = {0, 1, 2, 3, 4};

vec<int> x;

vec<int>::iterator ite;

x.insert(ite, ia, ia + 5);

}

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