智能指針
#include <iostream>
#include <string>
#include <memory>
#include <vector>
typedef std::shared_ptr< Tag > tag_ptr;
const tag_ptr func(int index, const std::vector< tag_ptr >& list)
{
? ? if (list.size() > index)
? ? {
? ? ? ? return list[index];
? ? }
? ? throw std::out_of_range("index");
}
int main()
{
?? ? if (true)
? ? {
? ? ? ? std::vector < tag_ptr > test_vecotr = {};
? ? ? ? tag_ptr p;
? ? ? ? for (int i = 0; i < 10; i++)
? ? ? ? {
? ? ? ? ? ? p = std::make_shared< Tag >(i, std::to_string(i));
? ? ? ? ? ? std::cout << p << "|" << p->getValue() << std::endl;
? ? ? ? ? ? test_vecotr.push_back(p);
? ? ? ? }
? ? ? ? p = func(5, test_vecotr);
? ? ? ? std::cout << p << "|" << p->getValue() << std::endl;
? ? }
? ? return 0;
}
0000027FDC0EFE20|0
0000027FDC0EC720|1
0000027FDC0EC300|2
0000027FDC0ECFD0|3
0000027FDC102080|4
0000027FDC102C80|5
0000027FDC102C00|6
0000027FDC102E80|7
0000027FDC102B00|8
0000027FDC102980|9
0000027FDC102C80|5
Deallocate the memory 0
Deallocate the memory 1
Deallocate the memory 2
Deallocate the memory 3
Deallocate the memory 4
Deallocate the memory 5
Deallocate the memory 6
Deallocate the memory 7
Deallocate the memory 8
Deallocate the memory 9
Deallocate the memory LWPOLYLINE
Deallocate the memory LINE
Deallocate the memory CIRCLE
Deallocate the memory ARC
Deallocate the memory OBJECTS
Deallocate the memory ENTITIES
Deallocate the memory BLOCKS
Deallocate the memory TABLES
Deallocate the memory CLASSES
Deallocate the memory HEADER
Deallocate the memory EOF
Deallocate the memory ENDSEC
Deallocate the memory SECTION
