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What is triple pointer?
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
Are pointers integers?
A pointer holds a memory address, from 0 to the upper limit of your memory (in 32 bit addressing this is up to 2^32, 64 bit is up to 2^64 bytes). So in math terms, a pointer could be considered a non-negative integer. However this is not the same as the integer type used in C and other languages, which refers to how the data at that memory address (the raw bits) is interpreted by the system. So the expression "int *x;" declares a pointer to an integer, but x is a memory address, not a literal C-style integer. The value pointed to by x, however, will be interpreted as a literal C-style integer. It may be easier to see using a pointer to a char: char character = 'C'; char *pointerToCharacter = character; In this case, character is a standard char variable, and pointerToCharacter is a pointer (which is a memory address) that points to the location in memory of a character.
What is the maximum integer allowed in an integer-type variable?
That varies from each programming language. As a matter of fact, many languages do not put a limit on the maximum size of a variable. It will handle any string, integer, resource, pointer, or other type size, as long as it fits into the memory of the machine running the process.
Can array size be increased ones its defined?
Yes but only if it is defined as a pointer and memory is dynamically assigned to the pointer.
What are Memory locations assigned either the short or int can only store?
Memory locations are supposed to be stored in pointers.If you have to convert a pointer to integer, use data-type intptr_t from inttypes.h
What is triple pointer?
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
Are pointers integers?
A pointer holds a memory address, from 0 to the upper limit of your memory (in 32 bit addressing this is up to 2^32, 64 bit is up to 2^64 bytes). So in math terms, a pointer could be considered a non-negative integer. However this is not the same as the integer type used in C and other languages, which refers to how the data at that memory address (the raw bits) is interpreted by the system. So the expression "int *x;" declares a pointer to an integer, but x is a memory address, not a literal C-style integer. The value pointed to by x, however, will be interpreted as a literal C-style integer. It may be easier to see using a pointer to a char: char character = 'C'; char *pointerToCharacter = character; In this case, character is a standard char variable, and pointerToCharacter is a pointer (which is a memory address) that points to the location in memory of a character.
What is the maximum integer allowed in an integer-type variable?
That varies from each programming language. As a matter of fact, many languages do not put a limit on the maximum size of a variable. It will handle any string, integer, resource, pointer, or other type size, as long as it fits into the memory of the machine running the process.
What is the size of integer pointer?
all pointers are 4 bytes in 32 bit system
Can array size be increased ones its defined?
Yes but only if it is defined as a pointer and memory is dynamically assigned to the pointer.
Size of stack memory and stack pointer register in 8051 microprocessor?
8 bit
What happens if we use an integer pointer as a member of structure instead of structure pointer?
By declaring an integer pointer you are declaring that any non-zero reference stored in the pointer is guaranteed to be an integer reference. In order to guarantee the reference is actually a structure, the pointer must be declared as such, because casting an integer to a structure can never be regarded as being type-safe.
What are Memory locations assigned either the short or int can only store?
Memory locations are supposed to be stored in pointers.If you have to convert a pointer to integer, use data-type intptr_t from inttypes.h
What is the largest positive integer that can be stored in memory size of 1 byte?
255
What is the effect of various arithmetic operators on a pointers?
Error message, mainly. The following operations are legal: ptr + integer (pointer) ptr - integer (pointer) ptr - ptr (integer)
What is pointer to a structure?
A pointer is a variable that holds address information. For example, in C++, say you have a Car class and another class that can access Car. Then, declaring Car *car1 =new Car() creates a pointer to a Car object.. The variable "car1" holds an address location.
What are pointer to pointer?
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.
