fortran for loop

Previous: Essential Concepts; Next: Arrays, Scalars, and Pure Scalars; Loop Parallelization. It repeats a statement or a group of statements while a given condition is true. It then distributes the work evenly over the available processors. The compiler may restructure the loop to split out unparallelizable sections that will run serially. It tests the condition before executing the loop body. Avec «Fortran» l'instruction permettant d'effectuer des comptes de boucles est «DO».L'«expression1» permet d'identifier la variable devant être utilisé pour effectuer le compteur de boucle.L'«expression2» est la valeur de départ ou d'initialisation du compteur de boucle.L'«expression3» est la valeur de fin du compteur de boucle. You can call any loop that uses an integer (or integral) counter and counts in specific steps a for loop no matter which keyword is actually used in the language.. Syntax do while (logical expr) statements end do Flow Diagram Example. Also note that pre-Fortran 2008, the condition code must be a constant expression and not a variable. It prints out the numbers from 0 to 20 in steps of 1. For repeated execution of similar things, loops are used. Fortran - Nested Loops - You can use one or more loop construct inside any another loop construct. If a DO WHILE statement appears within an IF, ELSE IF, or ELSE block, the range of the associated DO WHILE loop must be entirely within that block. Statement: Terminates execution of a DO loop or a named construct. Next Page . The C for loop exists mainly as a convenience to programmers since it is a pre-test loop like the while loop.

CYCLE will transfer the control of the program to the next END DO statement. 9. It repeats a statement or a group of statements while a given condition is true. Fortran - do while Loop Construct. The Fortran standard now requires that a do construct's loop control is given by (scalar) integer expressions and that the loop variable is a (scalar) integer variable.

If you are familiar with other programming languages you have probably heard about for-loops, while-loops, and until-loops.Fortran 77 has only one loop construct, called the do-loop.The do-loop corresponds to what is known as a for-loop in other languages.Other loop constructs have to be built using the if and goto statements. Copy program loop.f95 program loop implicit none integer :: i do i=0,20 print *,i end do end program loop Run the program. Ask Question Asked 8 years, 1 month ago. program factorial implicit none !

Description. 14.3 Loops.

Contact

 

LINE Contact