STL是在全局堆上用new申请的内存

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STL是在全局堆上用new申请的内存

// teststl.cpp : 定义控制台应用程序的入口点。

#include "stdafx.h"

#include "windows.h"

using namespace std;

//STL是在全局堆上申请的内存。都运行到了好几百兆了。

int _tmain1(int argc, _TCHAR* argv[])

{

char * str=(char *)malloc(100000000);//全局堆

list<string > ls;

for(int i=0;i<10000000;i++)

{

ls.push_back("aaaaaaaaaaaaaa");

}

return 0;

}

int _tmain(int argc, _TCHAR* argv[])

{

char * p=(char * )GlobalAlloc(GMEM_FIXED,1000);

map<string,int > mp;

char str[501];

str[500]=0;

char * str2=new char [200];

//#define F(i) for(str[i]='0';str[i]<='9';str[i]++)

#define F(i) for(str[i]=1;str[i]<=100;str[i]++)

F(0)

F(1)

F(2)

F(3)

F(4)

F(5)

F(6)

F(7)

F(8)

F(9)

F(10)

F(11)

{

str[12]=0;

mp[str]=1;

}

for(int c='0';c<='9';c++)

{

}

分配器果然是调用的new

new.cpp

>msvcr80d.dll!operator new(unsigned int size=52) 行59C++

teststl.exe!std::_Allocate<std::_Tree_nod<std::_Tmap_traits<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,

teststl.exe!std::allocator<std::_Tree_nod<std::_Tmap_traits<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,

teststl.exe!std::_Tree<std::_Tmap_traits<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,int,std::less<std::

teststl.exe!std::map<std::basic_string<char,std::char_traits<char>,std::allocator<char> >,int,std::less<std::basic_string<char,st