GeeksforGeeks
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Pointers in C - GeeksforGeeks
It is the backbone of low-level memory manipulation in C. A pointer is declared by specifying its data type and name, with an asterisk (*) before the name. Syntax: data_type *pointer_name;
Published November 14, 2025
TutorialsPoint
tutorialspoint.com › home › cprogramming › c pointers overview
Understanding C Pointers
June 10, 2012 - The only difference between pointers of different data types is the data type of the variable or constant that the pointer points to. After declaring a pointer variable, you need to initialize it with the address of another variable using the address of (&) operator. This process is known as referencing a pointer. The following is the syntax to initialize a pointer variable
Videos
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#23 C Pointers | C Programming For Beginners - YouTube
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C pointers explained👉 - YouTube
Pointer in C programming | pointer example in c | Learn Coding
Pointers in C / C++ [Full Course]
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Pointers in C for Absolute Beginners – Full Course - YouTube
W3Schools
w3schools.com › c › c_pointers.php
C Pointers
A pointer variable points to a data type (like int) of the same type, and is created with the * operator.
Programiz
programiz.com › c-programming › c-pointers
C Pointers (With Examples)
Here, 5 is assigned to the c variable. And, the address of c is assigned to the pc pointer. To get the value of the thing pointed by the pointers, we use the * operator. For example: int* pc, c; c = 5; pc = &c; printf("%d", *pc); // Output: 5
freeCodeCamp
freecodecamp.org › news › pointers-in-c-programming
How to Use Pointers in C Programming
May 3, 2023 - To initialize a pointer to point to a specific variable or memory location, we use the ampersand & operator to get the address of that variable. For example, to initialize the pointer p to point to an integer variable called x, we would write:
Yale University
cs.yale.edu › homes › aspnes › pinewiki › C(2f)Pointers.html
C/Pointers
The convention is C is that the declaration of a complex type looks like its use. To declare a pointer-valued variable, write a declaration for the thing that it points to, but include a * before the variable name:
Wikipedia
en.wikipedia.org › wiki › Pointer_(computer_programming)
Pointer (computer programming) - Wikipedia
3 weeks ago - Some built-in types, like maps and channels, are boxed (i.e. internally they are pointers to mutable structures), and are initialized using the make function. In an approach to unified syntax between pointers and non-pointers, the arrow (->) operator has been dropped: the dot operator on a pointer refers to the field or method of the dereferenced object.
Scaler
scaler.com › topics › c › pointer-declaration-in-c
Pointer Declaration in C - Scaler Topics
March 21, 2022 - Explanation: For pointer declaration in C, you must make sure that the data type you're using is a valid C data type and that the pointer and the variable to which the pointer variable points must have the same data type.
Medium
medium.com › @eightlimbed › c-pointer-syntax-in-plain-english-fb43e318624f
C Pointer Syntax in Plain English | by Lee Gaines | Medium
December 19, 2019 - “I’m assigning the 2nd character in the array called ‘str’ to a char variable called ‘c’.” · This syntax looks different than the one above, but means the exact same thing. This is known as “pointer notation”. To summarize, pointers are very powerful. They allow us to read and write values of variables anywhere in our program.
SDSU
edoras.sdsu.edu › doc › c › pointers-1.2.2
Everything you need to know about pointers in C
In the first example, the int (i.e. **ptr_a) is const; you cannot do **ptr_a = 42. In the second example, the pointer itself is const; you can change **ptr_b just fine, but you cannot change (using pointer arithmetic, e.g. ptr_b++) the pointer itself. Note: The syntax for all of this seems a bit exotic.
Unstop
unstop.com › home › blog › pointers in c | ultimate guide with easy explanations (+code)
Pointers In C | Ultimate Guide With Easy Explanations (+Code)
March 21, 2024 - The following diagram illustrates ... by the programmers. Pointers in C follow a syntax similar to variable declarations, but they are denoted by the * (asterisk) symbol....
ScholarHat
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Pointers in C: Types of Pointers
... In C, a pointer that points to no memory location is known as a null pointer. The only syntax required is pointer_variable = NULL;, where pointer_variable denotes the name of the pointer.
Published January 25, 2025
Javatpoint
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C Pointers - javatpoint
The sizeof() operator is commonly used in C. It determines the size of the expression or the data type specified in the number of char-sized storage units. The sizeof() operator contains a single operand which can be either an expression or a data typecast where the... ... Till now, we have studied that the address assigned to a pointer should be of the same type as specified in the pointer declaration.
freeCodeCamp
freecodecamp.org › news › pointers-in-c-are-not-as-difficult-as-you-think
Pointers in C Explained – They're Not as Difficult as You Think
August 11, 2020 - Like an array of ints and an array of chars, there is an array of pointers as well. Such an array would simply be a collection of addresses. Those addresses could point to individual variables or another array as well. The syntax for declaring a pointer array is the following:
Fresh2Refresh
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Pointers in C language with examples - Fresh2refresh.com
September 28, 2020 - Pointers in C language is a variable ... might be belonging to any of the data type such as int, float, char, double, short etc. Pointer Syntax : data_type *var_name; Example : int *p; char *p;...
Top answer 1 of 5
119
Bjarne Stroustrup said:
The choice between "int* p;" and "int *p;" is not about right and wrong, but about style and emphasis. C emphasized expressions; declarations were often considered little more than a necessary evil. C++, on the other hand, has a heavy emphasis on types.
A "typical C programmer" writes "int *p;" and explains it "*p is what is the int" emphasizing syntax, and may point to the C (and C++) declaration grammar to argue for the correctness of the style. Indeed, the * binds to the name p in the grammar.
A "typical C++ programmer" writes "int* p;" and explains it "p is a pointer to an int" emphasizing type. Indeed the type of p is int*. I clearly prefer that emphasis and see it as important for using the more advanced parts of C++ well.
Source: http://www.stroustrup.com/bs_faq2.html#whitespace
I'd recommend the latter style because in the situation where you are declaring multiple pointers in a single line (your 4th example), having the asterisk with the variable will be what you're used to.
2 of 5
65
I personally prefer to place the * with the rest of the type
char* p; // p is a pointer to a char.
People will argue "but then char* p, q; becomes misleading", to which I say, "so don't do that".
University of Maryland, Baltimore County
userpages.cs.umbc.edu › bogar › Labs › Lab07 › syntax.html
Syntax of Pointers in C
This passes the addresses of num1 and num2 to swap its elements in Swap(). Swap() can modify the original num1 and num2 since it has their addresses. ... Just like other variables like ints, doubles, and chars, pointers need to be initialized.
BYJUS
byjus.com › gate › pointers-in-c
Pointers in C
August 1, 2022 - Once we declare a pointer, we then ... address of the variable. In case we don’t initialise the pointers in any C program and start using it directly, the results can be pretty unpredictable and potentially disastrous. We use the & (ampersand) operator to get the variable’s address in the program. We place the & just before that variable’s name whose address we require. Here is the syntax that we use ...
Cppreference
en.cppreference.com › w › c › language › pointer.html
Pointer declaration - cppreference.com
The qualifiers that appear between * and the identifier (or other nested declarator) qualify the type of the pointer that is being declared: int n; const int * pc = &n; // pc is a non-const pointer to a const int // *pc = 2; // Error: n cannot be changed through pc without a cast pc = NULL; ...
Medium
medium.com › @Dev_Frank › pointers-in-c-422cccdbf2f6
POINTERS IN C. Pointer is a variable that stores the… | by Dev Frank | Medium
February 16, 2024 - It is like a guide that knows the exact location of some information in a computer’s memory. Rather than keeping the actual data, a pointer stores the precise location in the computer’s memory where the data is kept. The structure for declaring pointers in C resembles the syntax for declaring variables.