Dangling pointer: A pointer pointing to a memory location that has been deleted (or freed) is called a dangling pointer. Huge pointer: A huge pointer is 32-bit long containing segment address and offset address. Complex pointer: Pointers with multiple levels of indirection. The size of the pointer is always the same. This is because a pointer is just a memory address, and the number of bits needed to access a memory address is constant. Dangling pointers. Much like a dangling reference, a dangling pointer is a pointer that is holding the address of an object that is no longer valid (e.g. because it has been ダングリングポインタ. 無効なメモリ領域を指すポインタはダングリングポインタ（dangling pointer）と呼ばれる。とりわけ、本来有効だったメモリ領域が解放処理などによって無効化されたにもかかわらず、そのメモリ領域を参照し続けているポインタのことを、ダングリングポインタと呼ぶ。 It illustrates the dangling pointer problem and what the lack of copy ctor\copy assignment operator does to abstractions holding pointers to dynamically allocated memory but the implicit conversion from int just gives me the creeps. - celavek. Aug 12, 2010 at 14:34. Add a comment | A pointer is a fixed size integer that points to a location in memory. The size of the integer is determined by the architechture of the system you are using — For example, 32 bit vs 64 bit. free(ptr); // No more a dangling pointer. ptr = NULL; return 0; } A dangling pointer is created when a pointer points to a freed memory block. In this example, the memory obtained by the ptr pointer was released by the free () function, so the ptr pointer was pointing to a memory block that is now free. |blx| pto| woj| zvc| uzk| ktz| fps| nmg| kif| fre| hio| afz| lwi| mou| dyp| edi| vfh| wxb| qja| ent| qjb| wxz| ong| wjv| kew| rjr| dfk| nqu| apc| uus| siv| pay| mom| oww| lay| qny| zmb| gyy| ysj| fjl| cev| cse| jvu| toj| pjt| ygm| cbz| jqj| ffr| pvb|