DIM — Positive difference¶

DIM(X, Y)¶

DIM(X,Y) returns the difference X-Y if the result is positive; otherwise returns zero.

Parameters

X – The type shall be INTEGER or REAL
Y – The type shall be the same type and kind as X. (As a GNU extension, arguments of different kinds are permitted.)

Returns

The return value is of type INTEGER or REAL. (As a GNU extension, kind is the largest kind of the actual arguments.)

Standard:: Fortran 77 and later
Class:: Elemental function

Syntax:

RESULT = DIM(X, Y)

Example:

program test_dim
    integer :: i
    real(8) :: x
    i = dim(4, 15)
    x = dim(4.345_8, 2.111_8)
    print *, i
    print *, x
end program test_dim

Specific names:

Name	Argument	Return type	Standard
`DIM(X,Y)`	`REAL(4) X, Y`	`REAL(4)`	Fortran 77 and later
`IDIM(X,Y)`	`INTEGER(4) X, Y`	`INTEGER(4)`	Fortran 77 and later
`DDIM(X,Y)`	`REAL(8) X, Y`	`REAL(8)`	Fortran 77 and later