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Home >
Electronics Tutorials >
C Language
Tutorial > Operators
- Unary and Prefix |
C Language Programming Library
Reference Guide
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Operators
- Unary and Prefix
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Prefix operators are operators that are prefixed to an
expression.
++operand;
This causes the value of the operand to be incremented by 1.
Its new value is then returned.
--operand;
This is the same but the value of the operand is decremented
by 1.
!operand
Returns the logical NOT operation on the operand. A true
operand returns false, a false operand returns true. Also
known as the bang operand.
~operand
Returns the compliment of the operand. The returned value is
the operand with its bits reversed (1's become 0's, 0's
become 1's).
Examples:
int bart=7;
printf("%i",--bart);
This outputs the number 6. The value of bart is now 6.
int lisa=1;
printf("%i",!lisa);
This outputs 0 (false).
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