And

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The binary operator and performs a logical conjunction. FPC also does a bitwise and when supplied with ordinal types.

Boolean operation

The operator and accepts to two Boolean type values. It is the logical conjunction written in classic logic as [math]\displaystyle{ A \land B }[/math]. Electrical engineers may write [math]\displaystyle{ A \times B }[/math] or [math]\displaystyle{ A \cdot B }[/math], or eliminating the multiplication sign altogether writing [math]\displaystyle{ AB }[/math]. However, the asterisk has a different meaning in programming. The Boolean and evaluates to true if and only if both operands are true.

truth table for logical conjunction

A	B	A or B
false	false	false
false	true	false
true	false	false
true	true	true

Bitwise operation

FPC also defines a bitwise and. Taking two ordinal operands logical and is calculated bit by bit:

    1010'1100
and 0011'0100
――――――――――――
    0010'0100

comparative remarks

Depending on the compiler's specific implementation of the data type set, the symmetric difference of sets >< virtually does the same as the bitwise and.

see also

• or