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Environments, Tables, And Troff Macros  - implied_do (7)

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NAME

implied_do(7f) - [FORTRAN] documentation on usage of implied do in Fortran

SYNOPSIS

(values,i=start,end,increment)

DESCRIPTION

Examples using implied DO loops in Fortran code.

EXAMPLES

Sample Programs:

   program demo_implied_do
   implicit none
      integer :: i
      ! [A-Z] [a-z] alphabet
      character(len=1),parameter :: a2z(26*2)=[(char(i),i=65,90),(char(i),i=97,122)]
      write(*,*)’Alphabet=’,a2z
   end program demo_implied_do

Expected output:

   Alphabet=ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

Examples of array constructors containing an implied DO are:

   (/ (I, I = 1, 1075) /)

and

   N=20
   [ 3.6, (3.6 / I, I = 1, N) ]

For an io-implied-do, the loop initialization and execution are the same as for a DO construct. An example of an output list with an implied DO is:

   WRITE (LP, FMT = ’(10F8.2)’) (LOG (A (I)), I = 1, N + 9, K), G

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Nemo Release 3.1

implied_do (7)

February 23, 2025

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