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What does & mean in c language

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Release: 2024-04-26 17:54:01
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In C language, the & symbol is used to get the address of a variable: it is called the address operator. Used to get the address of a variable in memory. Store the address in a pointer variable or use it for pointer arithmetic. Cannot be used to obtain the address of a constant or literal. What does

What does & mean in c language

& mean in C language?

In C language, the & symbol is used to get the address of a variable. It is called address operator.

Usage:

& operator followed by a variable name returns the address of the memory location where the variable is located. This address can be stored in a pointer variable or used in pointer arithmetic.

Example:

int x = 10;
int *ptr = &x;
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In the above example, &x returns the address of the x variable and assigns it to the pointer variable ptr. Now, the ptr variable stores the address of the memory location where the x variable resides.

Note:

  • & operator can only be used to obtain the address of a variable, and cannot be used to obtain the address of a constant or literal. The
  • & operator has higher precedence than arithmetic operators, so it usually takes precedence in an expression.
  • After obtaining the address, you can perform arithmetic operations on the pointer, such as increment and decrement, to access other memory locations.

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