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C Language > Learn C Language > What is meaning of & in c language?
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What is meaning of & in c language?

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In the C family of languages, &x means “the address of x” and *y means “the value at the address y”.
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In the C language, the ampersand &symbol has two primary meanings: the address-of operator and the bitwise AND operator.
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IT Corporate Trainer with 9 years of experience in Edu tech

In C language, the & symbol has two main meanings depending on how it’s used: 1. Address-of Operator When used in front of a variable, & gives the memory address of that variable. Example: cCopyEditint x = 10; printf("%p", &x); // prints the memory address of x...
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In C language, the & symbol has two main meanings depending on how it’s used:

1. Address-of Operator

When used in front of a variable, & gives the memory address of that variable.

Example:

  • cCopyEditint x = 10; 
  • printf("%p", &x); // prints the memory address of x 

✅ Used to pass variables by reference or for pointer operations.

2. Bitwise AND Operator

When used between two values, & performs a bitwise AND operation — it compares each bit of two integers and returns 1 only if both bits are 1.

Example:

  • cCopyEditint a = 6; // 0110 in binary 
  • int b = 3; // 0011 in binary 
  • int result = a & b; // result = 2 (0010) 

✅ Used for low-level operations, masking bits, etc.

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My teaching experience 12 years

the address-of operator and the bitwise AND operator.
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The Address Operator in C is a special unary operator that returns the address of a variable. It is denoted as the Ampersand Symbol ( & ). This operator returns an integer value which is the address of its operand in the memory.
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