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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 does star with identifier mean in c language?
It depends on the context. If used in a declaration, it means that the identifier is declared a pointer to a named type. If used in an expression, it means that you wish to dereference a pointer. A pointer is used to store memory addresses. Dereferencing a pointer allows the programmer to access the value stared in the memory address. In other words, it provides indirect access to the value stored in the memory address being pointed at.int i, *p; /* declare an integer and a pointer to an integer */p = &i; /* store the address of i in p (point to i)*/*p = 42; /* store the value 42 in that address (dereference) */assert (i==42); /* assert that i now holds the value 42 */It mean the content of that identifier.
