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Fortran / Arrays

Forall legacy concept

Learn Forall legacy concept in Fortran through a focused explanation, a dedicated topic-specific example, an engineering boundary, and a mastery check.

10 min read • Beginner

Forall legacy concept is a focused Fortran lesson inside Arrays. The example uses the construct named in the lesson directly rather than reusing a generic placeholder.

Trace the example from its inputs through Forall legacy concept and identify the behavior that would change if that construct were removed or replaced. Pay attention to the language-specific rules shown by the syntax, because neighboring lessons intentionally exercise different mechanisms.

Topic-specific example

fortran-0017-cd5bef32ea.f90
fortran Try It Live 
program demo
  implicit none
  integer :: values(3) = [18, 19, 20]
  print *, sum(values) ! Forall legacy concept
end program demo
Edge case / engineering note

For Forall legacy concept, test one realistic boundary: empty data, invalid input, unavailable resources, lifetime/cleanup, type constraints, or concurrency timing where applicable. A successful happy path is not enough to prove the construct is used correctly.

Content source & attribution
Original Syntaxis Content · Original Syntaxis Content

Lesson quizzes

Forall legacy concept Mastery Check →
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