How do you initialize a pointer to the address of a variable 'x' ?Marks : 1Negative Marks : 0Answer hereint *ptr = x;int *ptr = &x;*int ptr;int *ptr = *x;
Question
How do you initialize a pointer to the address of a variable 'x' ?Marks : 1Negative Marks : 0Answer hereint *ptr = x;int *ptr = &x;*int ptr;int *ptr = *x;
Solution
To initialize a pointer to the address of a variable 'x', you would use the following code:
int *ptr = &x;
Here's the step by step explanation:
-
int *ptr;This line declares a pointer to an integer. The asterisk (*) is used to denote that 'ptr' is a pointer. -
= &x;This line assigns the address of 'x' to the pointer 'ptr'. The ampersand (&) is used to get the address of a variable.
So, int *ptr = &x; declares a pointer and initializes it to the address of 'x'.
Similar Questions
In C, what is the result of declaring a pointer as int *ptr; without initialization?Marks : 1Negative Marks : 0Answer hereThe value of the variableptr points to a specific known memory locationptr contains a garbage value as its addressptr points to the memory location 0
Which of these is a correct way to initialize a pointer in C?Marks : 1Negative Marks : 0Answer hereint ptr = 0int *ptr = 0int ptr = NULLint *ptr = NULL
What is the correct syntax for declaring a pointer variable?Marks : 1Negative Marks : 0Answer hereint *ptr;pointer int *ptr;*int ptr;None of the mentioned options
What is the purpose of declaring a pointer variable in C?Marks : 1Negative Marks : 0Answer hereTo create a new variable.To store the address of another variable.To perform mathematical operations.All of the mentioned options
In C, what is the result of declaring a pointer as int *ptr; without initialization?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.