From comp.compilers newsgroup: FORTRAN to programming flowchart. I'm surching for a tool with the subsequent specification: A FORTRAN-source-program (or C-program) should be visualised as a. Does anyone know of a good and free flow chart generator for Fortran 90? The only ones I have been able to find so far are Visustin and OmegaChart, neither Login with. Do you really want to flowchart the entire program? Visustin generates flow charts from code written in Fortran 66, 77. Fortran/Fortran examples - Wikibooks, open books for an open world. Part of the Fortran Wiki. Book. The following Fortran code examples or sample programs show different situations depending on the compiler. The first set of examples are for the Fortran II, IV, and 7. The remaining examples can be compiled and run with any newer standard Fortran compiler (see the end of the main Fortran article for lists of compilers). By convention most contemporary Fortran compilers select the language standard to use during compilation based on source code file name suffix: FORTRAN 7. Fortran 9. 0 for . Fortran 9. 5 for . Other standards, if supported, may be selected manually with a command line option. FORTRAN II, IV, and 7. Fortran Java JavaScript JCL (MVS) JSP. Visustin for code review. Verify program logic with flow charts. Flowchart code automatically. Visustin converts source code to flow charts automatically. Some compilers also offer free form source by using a compiler flag. Area Of a Triangle program. Normal output will be one line printed with A, B, C, and AREA. No specific units are stated. C AREA OF A TRIANGLE - HERON'S FORMULAC INPUT - CARD READER UNIT 5, INTEGER INPUTC OUTPUT - LINE PRINTER UNIT 6, REAL OUTPUTC INPUT ERROR DISPLAY ERROR OUTPUT CODE 1 IN JOB CONTROL LISTINGINTEGER A,B,CREAD(5,5. A,B,C 5. 01. FORMAT(3. I5)IF(A. EQ. 0. OR. B. EQ. 0. OR. C. EQ. STOP 1. S=(A+B+C)/2. AREA=SQRT(S*(S- A)*(S- B)*(S- C))WRITE(6,6. A,B,C,AREA 6. 01. FORMAT(4. HA=,I5,5. HB=,I5,5. HC=,I5,8. HAREA=,F1. 0. 2,1. HSQUAREUNITS)STOPENDSimple Fortran IV program. Either condition causes a message to be printed. C AREA OF A TRIANGLE - HERON'S FORMULAC INPUT - CARD READER UNIT 5, INTEGER INPUT, ONE BLANK CARD FOR END- OF- DATAC OUTPUT - LINE PRINTER UNIT 6, REAL OUTPUTC INPUT ERROR DISPAY ERROR MESSAGE ON OUTPUT 5. FORMAT(3. I5) 6. 01. FORTRAN Tutorial Home Worksheet 1 - Basics Worksheet 2 - Decisions. Create and run a FORTRAN 95 program; Understand basic program structure; Start to deal with programming errors; Start to understand. FORMAT(4. HA=,I5,5. HB=,I5,5. HC=,I5,8. HAREA=,F1. 0. 2,1.
HSQUAREUNITS) 6. 02. FORMAT(1. 0HNORMALEND) 6. FORMAT(2. 3HINPUTERROR,ZEROVALUE)INTEGER A,B,C 1. READ(5,5. 01)A,B,CIF(A. EQ. 0. AND. B. EQ. AND. C. EQ. 0)GOTO5. IF(A. EQ. 0. OR. B. EQ. 0. OR. C. EQ. GOTO9. 0S=(A+B+C)/2. AREA=SQRT(S*(S- A)*(S- B)*(S- C))WRITE(6,6. A,B,C,AREAGOTO1. 0 5. WRITE(6,6. 02)STOP 9. WRITE(6,6. 03)STOPENDSimple Fortran 7. In either condition, a message will be printed. C AREA OF A TRIANGLE - HERON'S FORMULAC INPUT - CARD READER UNIT 5, INTEGER INPUT, NO BLANK CARD FOR END OF DATAC OUTPUT - LINE PRINTER UNIT 6, REAL OUTPUTC INPUT ERROR DISPAYS ERROR MESSAGE ON OUTPUT 5. FORMAT(3. I5) 6. 01. FORMAT(. An IBM 1. IBM 1. 13. 0. org that will allow the FORTRAN IV program to be compiled and run on a PC. Hello, World program. The number 7 in the WRITE statement refers to the statement number of the corresponding FORMAT statement. FORMAT statements may be placed anywhere in the same program or function/subroutine block as the WRITE statements which reference them. Typically a FORMAT statement is placed immediately following the WRITE statement which invokes it; alternatively, FORMAT statements are grouped together at the end of the program or subprogram block. If execution flows into a FORMAT statement, it is a no- op; thus, the example above has only two executable statements, WRITE and STOP. The initial 1. 3H in the FORMAT statement in the above example defines a Hollerith constant, here meaning that the 1. Hollerith constant is not surrounded by delimiters). A zero in this position advances two lines (double space), a 1 advances to the top of a new page and + character will not advance to a new line, allowing overprinting. FORTRAN 7. 7. Comment lines may be indicated with either a C or an asterisk (*) in column 1. PROGRAM HELLO* The PRINT statement is like WRITE,* but prints to the standard output unit. PRINT'(A)','Hello, world'STOPENDFortran 9. An updated version of the Hello, world example (which here makes use of list- directed I/O, supported as of FORTRAN 7. Fortran 9. 0 as follows: program Hello. Worldwrite(*,*)'Hello, world!'! This is an inline commentend program Hello. World. Fortran 7. List- directed formatting instructs the compiler to make an educated guess about the required input or output format based on the following arguments. As the earliest machines running Fortran had restricted character sets, FORTRAN 7. EQ., . NE., . LT., . GT., . LE., and . GE. This is necessary as the values of IA and IB are altered within the function. Because argument passing in Fortran functions and subroutines utilize call by reference by default (rather than call by value, as is the default in languages such as C), modifying NA and NB from within the function would effectively have modified the corresponding actual arguments in the main PROGRAM unit which called the function. The following shows the results of compiling and running the program. In this example, this statement specifies that the implicit type of variables beginning with the letter X shall be COMPLEX. The PARAMETER statement may be used to specify constants. The second constant in this example (XJ) is given the complex- valued value 0+j. In this example, as neither the END IF nor the FORMAT is a single executable statement, the CONTINUE statement (which does nothing) is used simply in order for there to be some statement to denote as the final statement of the loop. EXP() corresponds to the exponential function ex. In FORTRAN 7. 7, this is a generic function, meaning that it accepts arguments of multiple types (such as REAL and, in this example, COMPLEX). In FORTRAN 6. 6, a specific function would have to be called by name depending on the type of the function arguments (for this example, CEXP() for a COMPLEX- valued argument). When applied to a COMPLEX- valued argument, REAL() and AIMAG() return the values of the argument's real and imaginary components, respectively. Incidentally, the output of the above program is as follows (see the article on Euler's formula for the geometric interpretation of these values as eight points spaced evenly about a unit circle in the complex plane). Incidentally, Fortran 9. Fortran 9. 0/9. 5 examples. Upon execution, instructions are printed to the screen and a SUM variable is initialized to zero outside the loop. Once the loop begins, it asks the user to input any number. This number is added to the variable SUM every time the loop repeats. If the user inputs 0, the EXIT statement terminates the loop, and the value of SUM is displayed on screen. Also apparent in this program is a data file. Before the loop begins, the program creates (or opens, if it has already been run before) a text file called . During the loop, the WRITE statement stores any user- inputted number in this file, and upon termination of the loop, also saves the answer.! Performs summations using in a loop using EXIT statement! Saves input information and the summation in a data fileprogram summationimplicit noneinteger: :sum,aprint*. Calculate the surface area of a cylinder.!! Declare variables and constants.! Require all variables to be explicitly declaredinteger: :ierrcharacter(1): :ynreal: :radius,height,areareal,parameter: :pi=3. Particularly noteworthy is the absence of DO loops and IF/THEN statements in manipulating the array; mathematical operations are applied to the array as a whole. Also apparent is the use of descriptive variable names and general code formatting that comport with contemporary programming style. This example computes an average over data entered interactively. Read in some numbers and take the average! As written, if there are no data points, an average of zero is returned! While this may not be desired behavior, it keeps this example simpleimplicit noneinteger: :number! Take the average by summing points and dividing by number! Now form average over positive and negative points onlyif(count(points> 0.)> 0)positive! Print result to terminalwrite(*,'(''Average = '', 1g. Size of array, obtained using size intrinsic functiontol! Reset the tolerance value! This is preferably done by placing the function in a MODULE and then USEing the module in the calling routine. An alternative is to use an INTERFACE block, as shown by the following example: program test! As before, this is preferably done by placing the function in a MODULE and then USEing the module in the calling routine. An alternative is to use a INTERFACE block. Internal and Elemental Procedures! Elemental procedures must be pure (i. A Fortran 9. 0 pointer does not merely store the memory address of a target variable; it also contains additional descriptive information such as the target's rank, the upper and lower bounds of each dimension, and even strides through memory. This allows a Fortran 9. Fortran 9. 0 pointers are . When appearing in expressions, pointers are always dereferenced; no ! Unlike a simple INCLUDE file, a module is an independent program unit that can be compiled separately and linked in its binary form. Once compiled, a module's public contents can be made visible to a calling routine via the USE statement. The module mechanism makes the explicit interface of procedures easily available to calling routines. In fact, modern Fortran encourages every SUBROUTINE and FUNCTION to be CONTAINed in a MODULE. This allows the programmer to use the newer argument passing options and allows the compiler to perform full type checking on the interface. The following example also illustrates derived types, overloading of operators and generic procedures. Global. Module! Generic procedure. Date! Double precision kindreal,parameter: :zero=(0.)real(dp! For Fortran 9. 5, use the pointer attribute insteadend type matrix! This adds a new, additional procedure to the! Comments SHOULDN'T be added on include linesinclude'swap. Visustin - Flow chart generator. Visualize your source code with flow charts and UML Activity Diagrams. Visustin is flowcharting software that converts your source code to flow charts – automatically! Draw flow charts with your mouse. View and print charts or export to Visio. Visustin flowcharts 4. ABAP. Orange languages are new to Visustin v. More languages available. Need flow charts for another language? MPASM, Objective C, RPG anyone? Add new language. Visustin for software developers. Visustin reverse engineers your source code to flow charts or UML Activity Diagrams. Visustin flowcharts. Java. Server Pages. Power. Builder Power. Script. Unix shell script (bash, csh, tcsh, ksh, sh). VB, VBA, VBScript, VB. Net, Visual Fox. Pro and XSLT. Visustin for document writers. Add flow charts to your project documentation. Clear diagrams instantly tell the reader what even the most complex code does. Save your efforts with automated documentation! Why flow charts? Review algorithms> Fix bugs. Follow complex logic> Avoid bugs. Compare functions> Find errors. Restructure bad code> Add quality. Document programs> Save effort. Read strange languages> Reuse code. Visustin for code review. Verify program logic with flow charts. Find bugs before the users do. Save costs by fixing bugs earlier than before. Visustin for debuggers. View a flow graph to gain new insight and speed up debugging. Visustin for software maintenance. Flowchart old functions to understand them before modifications. After writing changes, flowchart the new version to verify the algorithm. Improved quality guarantees happy users. More uses for flow charts. Convert languages. Converting old code to a new language? Avoid conversion errors. Flowchart both versions to detect any differences. Extract business rules from legacy code. Flowchart routines to document the rules embedded in them. Read an unfamiliar language. Visualize program logic even if the code is in a language you don't know well. Restructure old spaghetti code. Confirm the results with flow charts. Understand the incomprehensible. Visustin converts source code to flow charts automatically. An automated layout ensures visually optimal results. Just hit a key and you're done. The charts visualize your code and optionally the comments as well. Edit flow charts. Insert comments, add shapes, highlight important points, adjust links, fine- tune the layout. Visustin Editor lets you draw flow charts from scratch with the mouse. Document your business processes. Plan your systems before building them. Visustin supports both flow charts and UML Activity Diagrams. Multi- page print. Print large flow charts as a multi- page mosaic. Squeeze to fit on one sheet. PDF flow charts. Save high- quality PDF charts. They are great to zoom and pan. Save charts. Use flow graphs in your project documentation. Save files in BMP, GIF, JPEG, PNG, TIFF, MHT, EMF or WMF format. Create web pages showing both the code and the flow chart. Export to Visio. Save your drawing efforts. Convert your source code to Microsoft Visio diagrams. More about Visio export. Create flow chart slide shows and documents. Bulk charting. Create Visio diagrams unattended. Run flowchart jobs in a batch. Keep your technical documents updated every night. Free flowcharting trial software that diagrams all your code. No size limitation. Print, Save and Export are disabled in the free demo. Use our free flowcharting service. We will save or export for you. Just send us some code. We can even send a PDF to print. System requirements. Windows 2. 00. 0/XP/2. Vista/7/8/8. 1. Mac? Run Visustin on the Mac the same way you run other Windows programs. More information. Online Help. Order Visustin. Sample flow charts. Why flow charts. Add language. Flowcharting service. What's new in Visustin. Visustin editions and features. Feature. Standard Edition. Pro Edition. Create charts from code. Yes. Yes. Print. Yes. Yes. Save. Yes. Yes. Draw charts with Editor- Yes. Export to Visio- Yes. Bulk flowchart- Yes. Visustin v. 7 price list — US dollars. Visustin license. Team (5)1. 0- pack+1 user. Site. Stan. Upgrade requires an existing Visustin license (same size or larger), any version, any edition. Special terms for educational licenses. Try it for free. Download Visustin, a high- quality automated flowcharter. Visustin is risk- free and comes with a full 3. They use Visustin. Corporations, banks, universities, government units and thousands of. Visustin to document their valuable. A site license allows 1. Other license sizes are available on request. Reinstallation is allowed if previous installations are removed first. Online activation is required before running the full software. Offline activation is possible through another, online computer. Activation is covered for 3 years after purchase. License and activation details. License terms. Upgrades. Minor updates are free within one major version number (7. No free updates are guaranteed to come out. Project Analyzer produces high- level VB graphs such as call trees and dependency diagrams. Visustin flowcharts the details. Navigate your code with Project Analyzer, flowchart it with Visustin.
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