9.100 FLOOR — Integer floor function

Description:

FLOOR(A) returns the greatest integer less than or equal to X.

Standard:

Fortran 95 and later

Class:

Elemental function

Syntax:

RESULT = FLOOR(A [, KIND])

Arguments:

A	The type shall be REAL.
KIND	(Optional) An INTEGER initialization expression indicating the kind parameter of the result.

Return value:

The return value is of type INTEGER(KIND) if KIND is present and of default-kind INTEGER otherwise.

Example:

program test_floor
    real :: x = 63.29
    real :: y = -63.59
    print *, floor(x) ! returns 63
    print *, floor(y) ! returns -64
end program test_floor

See also:

CEILING, NINT