MODULO(A, P)

Purpose

Modulo function.

Class

Elemental function

Argument type and attributes

A

An INTENT(IN) INTEGER or REAL

P

An INTENT(IN) argument of the same type and kind type parameter as A.

Result type and attributes

Same as A.

Result value

• Case (i): A is of type integer. If P ≠ 0, MODULO (A, P) has the value R such that A = Q * P + R, where Q is an integer.

  If P > 0, the inequalities 0 ≤ R < P hold.

  If P < 0, P < R ≤ 0 hold.

  If P = 0, the result is undefined.

• Case (ii): A is of type real. If P ≠ 0, the value of the result is A - FLOOR (A / P) * P.

  If P = 0, the result is undefined.