And
Operator

<and-operator>

&&

• For logical operands, the programmatic and is the common Boolean and.

And (Boolean and, logical and)

boolean × boolean → boolean

Name

And (Boolean and, logical and)

Verb Form

and

Commutativity

And (Boolean and, logical and) is commutative

Associativity

And (Boolean and, logical and) is mathematically associative

And (Boolean and, logical and) is syntactically associative left to right.

Side Effect

And (Boolean and, logical and) has no side effects

• For logical operands, the result is false iff either operand is false.
• For logical operands, the result is true iff both operands are true.

The logical AND operation short circuits: that is,

• The left operand is evaluated.
• if the left operand is false, the result is false, and the right operand is not evaluated.
• if the right operand is true, the right operand is evaluated, and the result is the value of the right operand.

#include <stdio.h>

void Display (int A, int B);

int main () {
  Display (0, 0);
  Display (0, 1);
  Display (1, 0);
  Display (1, 1);
  Display (2, 7);
  Display (15, 22);
}

void Display (int A, int B) {
  int C;
  C = A && B;
  printf ("%i && %i is %i\n", A, B, C);
}

0 && 0 is 0
0 && 1 is 0
1 && 0 is 0
1 && 1 is 1
2 && 7 is 1
15 && 22 is 1