Operators

The complete set of C operators may be described as follows:

1. Arithmetic operators
   • Multiplicative: * , / , %
   • Additive: + , -
   • Increment/decrement: ++ , --
   • Unary plus, minus: + , -

   Operands are subject to integral promotion.

   The type of the result is related directly to the type of the operand(s).

2. Bitwise operators
   • Bitwise shift: << , >>
   • Bitwise AND, XOR, OR: & , ^ , |
   • Bitwise complement: ~

   Operands are subject to integral promotion.

   The type of the result is related directly to the type of the operand(s).

3. Relation operators
   • Relational: < , <= , >= , >

   The real type of the result is always int. The underlying type is treated as Boolean.

4. Equality operators
   • Equality: == , !=

   The real type of the result is always int. The underlying type is treated as Boolean.

5. Logical operators
   • Logical AND: &&
   • Logical OR: ||
   • Logical negation: !

   The operands are interpreted as Boolean.

   The real type of the result is always int. The underlying type is treated as Boolean.

6. Assignment operators
   • Simple assignment: =
   • Compound assignment: *= , /= , %= , += , -= , <<= , >>= , &= , ^= , |=

   Compound assignment operators exist only for the sets of binary arithmetic and bitwise operations.

7. Conditional operator
   • Conditional operator: ? :

   The 2nd and 3rd operands are subject to integral promotion and balancing (the usual arithmetic conversions) in computing the result.

8. Other operators
   • Array subscript: [ ]
   • Function call: ( )
   • struct/union member: . , ->
   • Address and Indirection: & *
   • Cast: (type)
   • Comma: ,
   • sizeof: sizeof

Index