Example: int x; -- integer int *px= &x; -- pointer to integer int **ppx= &px; -- pointer to pointer to integer int ***pppx= &ppx; -- pointer to pointer to pointer to integer
Pointer to Pointer is a double pointer, denoted by (**). Pointer stores the address of the variable and pointer to pointer stores the address of a pointer variable and syntax can be given as int **ptr2ptr;
When a variable is declared as being a pointer to type void it is known as a generic pointer. Since you cannot have a variable of type void, the pointer will not point to any data and therefore cannot be dereferenced. It is still a pointer though, to use it you just have to cast it to another kind of pointer first. Hence the term Generic pointer.
yea that's why its called the point FINGER
constant pointer and character pointer
The needle in a compass is typically called a magnetic needle or magnetic pointer.
The needle, or "pointer", of a compass will always point North. See: http://en.wikipedia.org/wiki/Compass
The compass needle gets deflected when brought near a bar magnet because the magnet induces a magnetic field around it. This field interacts with the Earth's magnetic field, causing the needle to align itself with the magnetic field lines. This alignment results in the needle pointing towards the North and South poles of the bar magnet.
There are more than 2 types, but the most common 2 have a long pointer needle or a snap ratchet.
The part of an analog scale that gives the most accurate reading is typically the pointer or needle. This is because the pointer directly indicates the measurement on the scale, making it easier to read the value precisely.
That depends on which pole of the magnet it is moved close to. If it is brought close to the "South" pole of the magnet, the "North" pointer of the compass will be attracted to the magnet. If it is brought close to the "North" pole of the magnet, the "North" pointer of the compass will be repelled and will point AWAY from the magnet, while the "South" end of the compass pointer will point to the magnet.
A magnetic needle is a small magnetized object, often shaped like a pointer, that aligns itself with Earth's magnetic field when freely suspended. It is commonly used in compasses to indicate geographic directions, with one end pointing towards the magnetic north. The needle's orientation helps navigators determine their heading relative to the Earth's magnetic poles.
1. pointer to a constant means you can not change what the pointer points to 2. constant pointer means you can not change the pointer.
Generally the pointer ["arrow"] is not directly connected to the transmission, and is loosely connected to the shift lever, or its linkage to the transmission, by a very flimsy cable or rod and connectors. The pointer is only a position indicator for the lever. If the transmission is operating properly as you describe, I suspect that the the only problem is that the linkage TO THE POINTER has been damaged or dislocated. Sometimes, if the needle linkage is a small cable, it is routed over a pivot or small pulley. If the cable has been dislocated, it will cause the needle to be dislocated also. j3h.
Example: int x; -- integer int *px= &x; -- pointer to integer int **ppx= &px; -- pointer to pointer to integer int ***pppx= &ppx; -- pointer to pointer to pointer to integer
the compass needle is magnetized and aligns itself with Earth's magnetic field, which causes it to point north-south. This allows travelers to determine their direction accurately by observing the alignment of the compass needle with the Earth's magnetic field.
A pointer only holds an address information (location) in the memory. if a pointer holds points another pointer then it is a pointer to an other pointer. Pointer holds an address in the memory so in that address there is an other location information that shows another location.