INCLAN: if

Synopsis

if (condition) statement

or

if (condition) then

sequence of statements

else if (condition) then

sequence of statements

else

sequence of statements

end if

Description

The "if" statement allows for Fortran-77 style logical or block if statements. A logical "if" statement must not end with the word "then".

Examples

i=–56
if (i.lt.0) print "$i is negative."
–56 is negative.

if (mod(i,2).eq.1) then
  print "$i is an odd number."
else if (def(’x’) .and. exist(’y’)) then
  print "x is defined, and y exists."
else if (s.eq.’ ’) then
  print "The variable s is blank."
end if