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/GNU Fortran 7

9.86 DIM — Positive difference

Description:

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

Standard:

Fortran 77 and later

Class:

Elemental function

Syntax:

RESULT = DIM(X, Y)

Arguments:
X The type shall be INTEGER or REAL
Y The type shall be the same type and kind as X.
Return value:

The return value is of type INTEGER or REAL.

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

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Licensed under the GNU Free Documentation License, Version 1.3.
https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gfortran/DIM.html