5,321
edits
C++: Difference between revisions
no edit summary
No edit summary |
No edit summary |
||
| Line 71: | Line 71: | ||
===Memory=== | ===Memory=== | ||
==== Garbage Collection ==== | ==== Garbage Collection ==== | ||
[https://www.geeksforgeeks.org/auto_ptr-unique_ptr-shared_ptr-weak_ptr-2/ Smart Pointers]<br> | |||
Starting from C++14, you should use smart pointers such as [https://en.cppreference.com/w/cpp/memory/shared_ptr <code>shared_ptr</code>] which has automatic garbage collection.<br> | |||
<br> | |||
Traditional C++ does not have garbage collection.<br> | Traditional C++ does not have garbage collection.<br> | ||
After using <code>new</code> to allocate an object, use <code>delete</code> to deallocate it. <br> | After using <code>new</code> to allocate an object, use <code>delete</code> to deallocate it. <br> | ||
You can also use C allocation with <code>malloc</code>, <code>calloc</code>, <code>alloca</code>, and <code>free</code>, though it is [https://stackoverflow.com/questions/184537/in-what-cases-do-i-use-malloc-and-or-new not recommended] since these are not type-safe.<br> | You can also use C allocation with <code>malloc</code>, <code>calloc</code>, <code>alloca</code>, and <code>free</code>, though it is [https://stackoverflow.com/questions/184537/in-what-cases-do-i-use-malloc-and-or-new not recommended] since these are not type-safe.<br> | ||
==Programming Styles== | ==Programming Styles== | ||