TinySTL

采用C++11实现一款简易的STL标准库

目的:练习数据结构与算法和C++ Template编程

编译环境:VS2013及以上版本

##开发计划:

  • STL的几大基本组件,如string、vector、list、deque、set、map、unordered_*等
  • STL算法库中的大部分算法
  • circular buffer
  • bitmap
  • skip list
  • binary search tree
  • AVL tree
  • 线段树
  • splay tree
  • rope
  • Van Emde Boas tree
  • treap
  • B-tree
  • trie
  • suffix array/tree
  • Disjoint-set data structure
  • k-d tree
  • R-tree
  • Graph

##完成进度:

  • STL的几大基本组件
    • type traits:100%
    • 空间配置器:100%
    • iterator traits:100%
    • reverse_iterator:100%
    • vector:100%
  • STL Algorithms:
    • fill:100%
    • fill_n:100%
  • circular_buffer:90%
  • bitmap:100%

#TinySTL测试: ###测试环境:Windows 7 && VS2013 && release模式 ###测试结果: ####(1):

//std::vector<int> vec;
TinySTL::vector<int> vec;
ProfilerInstance::start();
int i = 0;
for (; i != 10000; ++i){
	vec.push_back(i);
}
ProfilerInstance::finish();
ProfilerInstance::dumpDuringTime();

######i = 100000 -> (TinySTL::vector:2ms \ std::vector:6ms) ######i = 1000000 -> (TinySTL::vector:11ms \ std::vector:16ms) ######i = 10000000 -> (TinySTL::vector:129ms \ std::vector:210ms)
####(2):

//std::vector<std::string> vec;
TinySTL::vector<std::string> vec;
ProfilerInstance::start();
int i = 0;
for (; i != 10000; ++i){
	vec.push_back(std::string("zouxiaohang"));
}
ProfilerInstance::finish();
ProfilerInstance::dumpDuringTime();

######i = 100000 -> (TinySTL::vector:18ms \ std::vector:29ms) ######i = 1000000 -> (TinySTL::vector:181ms \ std::vector:232ms) ######i = 10000000 -> (TinySTL::vector:2372ms \ std::vector:1972ms) ####(3):

TinySTL::circular_buffer<int, 10000> cb(10000, 0);
//boost::circular_buffer<int> cb(10000, 0);
ProfilerInstance::start();
for (int i = 0; i != 10000000; ++i){
	cb.push_back(i);
}
ProfilerInstance::finish();
ProfilerInstance::dumpDuringTime();

######i = 10000000 -> (TinySTL::circular_buffer:75ms \ boost::circular_buffer:22ms) ######i = 100000000 -> (TinySTL::circular_buffer:604ms \ boost::circular_buffer:252ms) ######i = 1000000000 -> (TinySTL::circular_buffer:5936ms \ boost::circular_buffer:2241ms) ####(4):题目:利用bitmap找出str中未出现的字母

std::string str("abcdefghijklmnpqrstuvwxyz");
TinySTL::bitmap<26> bm;
for (auto it = str.cbegin(); it != str.cend(); ++it){
	bm.set(*it - 'a');
}
cout << bm << endl;
cout << bm.size() << endl;
for (int i = 0; i != 26; ++i){
	if (!bm.test(i))
		cout << "字母" << (char)('a' + i) << "没出现!!!" << endl;
}

输出结果:

111111111111110111111111111000000
32  
字母o没出现!!!
S
Description
TinySTL is a subset of STL(cut some containers and algorithms) and also a superset of STL(add some other containers and algorithms)
Readme
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Languages
C++ 100%