Reports:Tasks not implemented in Fortran

Automatically Generated: This result set should be accurate to within fifteen minutes of the last viewing.

Awareness

If Fortran is a language you like, or are interested in, please inform your fellow members of the Fortran community; this page can't be emptied without your and their participation.

Not implemented

These are currently not implemented in Fortran. Please implement some if you can. If any tasks are not possible or too complex in Fortran, they should not be on this list. To mark a task as such, add {{omit from|Fortran}}, preserving the capitalization of the language, to that task. It will appear below under the "Not Considered" section.

9 9 billion names of God the integer A AKS test for primes Abundant, deficient and perfect number classifications Accumulator factory Active Directory/Connect Active Directory/Search for a user Active object Align columns Aliquot sequence classifications Almost prime Amb Amicable pairs Anagrams/Deranged anagrams Animation Append a record to the end of a text file Arbitrary-precision integers (included) Arena storage pool Arithmetic-geometric mean/Calculate Pi Arithmetic evaluation Assertions Associative array/Creation Associative array/Iteration Atomic updates Average loop length Averages/Mean time of day B Balanced ternary Bernoulli numbers Best shuffle Binary strings Bitcoin/address validation Bitcoin/public point to address Bitmap/PPM conversion through a pipe Bitmap/Read an image through a pipe Bitwise IO Break OO privacy C CRC-32 CSV data manipulation CSV to HTML translation Calendar Calendar - for "REAL" programmers Call a foreign-language function Call a function in a shared library Canny edge detector Carmichael 3 strong pseudoprimes Casting out nines Catalan numbers/Pascal's triangle Catamorphism Catmull–Clark subdivision surface Chat server Check Machin-like formulas Checkpoint synchronization Chinese remainder theorem Closures/Value capture Collections Color of a screen pixel Color quantization Colour bars/Display Colour pinstripe/Display Colour pinstripe/Printer Combinations and permutations Comma quibbling Compare sorting algorithms' performance Constrained genericity Continued fraction/Arithmetic/Construct from rational number Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N) Continued fraction/Arithmetic/G(matrix NG, Contined Fraction N1, Contined Fraction N2) Convert decimal number to rational Count the coins Create an HTML table Create an object at a given address Currying Cut a rectangle D DNS query Date manipulation Death Star Deconvolution/2D+ Deepcopy Detect division by zero Determine if only one instance is running Dinesman's multiple-dwelling problem Dining philosophers Discordian date Distributed programming Documentation Dragon curve Draw a cuboid Draw a sphere E Echo server Element-wise operations Empty directory Empty string Events Exceptions Exceptions/Catch an exception thrown in a nested call Executable library Execute Brain**** Execute HQ9+ Execute SNUSP Execute a Markov algorithm Extend your language Extensible prime generator Extreme floating point values F Fibonacci word Fibonacci word/fractal File modification time File size Find common directory path Find largest left truncatable prime in a given base Find the last Sunday of each month First class environments Flow-control structures Fork Formal power series Fractal tree Fractran Function frequency Function prototype G GUI/Maximum window dimensions GUI component interaction GUI enabling/disabling of controls Galton box animation Generate Chess960 starting position Generator/Exponential Globally replace text in several files Go Fish Greyscale bars/Display H HTTP HTTPS HTTPS/Authenticated HTTPS/Client-authenticated Handle a signal Hash from two arrays Hash join Hello world/Graphical Hello world/Line printer Hello world/Newbie

H cont. Hello world/Web server Here document Heronian triangles History variables Hofstadter Figure-Figure sequences Hofstadter Q sequence Honeycombs Hough transform I IBAN Image convolution Image noise Inheritance/Multiple Integer overflow Introspection Inverted index Inverted syntax Iterated digits squaring J JSON Jensen's Device JortSort Joystick position Jump anywhere K K-d tree K-means++ clustering Keyboard input/Flush the keyboard buffer Keyboard input/Keypress check Keyboard input/Obtain a Y or N response Keyboard macros Knapsack problem/0-1 Knapsack problem/Bounded Knight's tour Knuth's algorithm S L LZW compression Largest int from concatenated ints Last letter-first letter Left factorials Levenshtein distance Literals/Floating point Literals/String Longest increasing subsequence Longest string challenge Ludic numbers M MD4 MD5 MD5/Implementation Machine code Mad Libs Magic squares of odd order Main step of GOST 28147-89 Make directory path Maximum triangle path sum Maze generation Maze solving Median filter Memory layout of a data structure Metaprogramming Metered concurrency Metronome Minesweeper game Modular exponentiation Modular inverse Morse code Mouse position Move-to-front algorithm Multifactorial Multiple regression Multiplicative order Multisplit Munching squares N Narcissist Narcissistic decimal number Natural sorting Nautical bell Non-continuous subsequences Null object Numeric error propagation O OLE Automation Odd word problem Old lady swallowed a fly One of n lines in a file OpenGL Order disjoint list items Order two numerical lists Ordered Partitions P Paraffins Parallel calculations Parametric polymorphism Parametrized SQL statement Parse an IP Address Parsing/RPN calculator algorithm Parsing/RPN to infix conversion Parsing/Shunting-yard algorithm Partial function application Pascal's triangle/Puzzle Pattern matching Penney's game Percolation/Bond percolation Percolation/Mean cluster density Permutation test Permutations/Derangements Permutations/Rank of a permutation Permutations by swapping Pernicious numbers Phrase reversals Pi Pick random element Pig the dice game Pig the dice game/Player Pinstripe/Display Pinstripe/Printer Play recorded sounds Plot coordinate pairs Polymorphic copy Power set Pragmatic directives Q QR decomposition Quickselect algorithm R RCRPG RIPEMD-160 RSA code Random number generator (included) Range expansion Range extraction Ranking methods Rate counter Read a file line by line Read a specific line from a file Read entire file Record sound Regular expressions Remove lines from a file Rendezvous Rep-string Resistor mesh Respond to an unknown method call Reverse words in a string

R cont. Rosetta Code/Count examples Rosetta Code/Find bare lang tags Rosetta Code/Find unimplemented tasks Rosetta Code/Fix code tags Rosetta Code/Rank languages by popularity Runtime evaluation Runtime evaluation/In an environment S S-Expressions SHA-1 SHA-256 SOAP SQL-based authentication Safe addition Same Fringe Scope/Function names and labels Scope modifiers Secure temporary file Self-describing numbers Self-referential sequence Semiprime Send an unknown method call Send email Sequence of primes by Trial Division Set Set consolidation Set of real numbers Set puzzle Show the epoch Sierpinski triangle/Graphical Simple database Simple windowed application Simulate input/Keyboard Simulate input/Mouse Singleton Sockets Sokoban Solve a Hidato puzzle Solve a Holy Knight's tour Solve a Hopido puzzle Solve a Numbrix puzzle Solve the no connection puzzle Sort stability Sorting algorithms/Permutation sort Sorting algorithms/Radix sort Sorting algorithms/Sleep sort Sorting algorithms/Strand sort Soundex Sparkline in unicode Special characters Special variables Speech synthesis Stable marriage problem Stack traces Start from a main routine State name puzzle Stem-and-leaf plot Stern-Brocot sequence String append String comparison String length String matching String prepend Strip block comments Strip whitespace from a string/Top and tail Sum multiples of 3 and 5 Sutherland-Hodgman polygon clipping Synchronous concurrency T Table creation/Postal addresses Take notes on the command line Terminal control/Coloured text Terminal control/Cursor movement Terminal control/Cursor positioning Terminal control/Dimensions Terminal control/Display an extended character Terminal control/Hiding the cursor Terminal control/Inverse video Terminal control/Positional read Terminal control/Preserve screen Terminal control/Ringing the terminal bell Terminal control/Unicode output Test a function Text processing/1 Text processing/2 Textonyms The ISAAC Cipher The Twelve Days of Christmas Thiele's interpolation formula Tic-tac-toe Top rank per group Topic variable Total circles area Tree traversal Truncate a file Twelve statements U URL decoding URL encoding Ulam spiral (for primes) Undefined values Unicode strings Unicode variable names Universal Turing machine Unix/ls Update a configuration file Use another language to call a function User input/Graphical V Vampire number Van der Corput sequence Variable-length quantity Video display modes Vigenère cipher Vigenère cipher/Cryptanalysis Visualize a tree Vogel's approximation method Voronoi diagram W Walk a directory/Non-recursively Walk a directory/Recursively Web scraping Window creation Window creation/X11 Window management Word wrap World Cup group stage Write language name in 3D ASCII Write to Windows event log X XML/DOM serialization XML/Input XML/Output XML/XPath Xiaolin Wu's line algorithm Y Y combinator Yahoo! search interface Yin and yang Z Zebra puzzle Zeckendorf arithmetic Zeckendorf number representation Zhang-Suen thinning algorithm

---

Draft tasks without implementation

These tasks as drafts, meaning they largely need more work to turn them into full tasks. Perhaps you can help by trying to implement them in Fortran (after all, one of the key requirements for a task being non-draft is multiple implementations, preferably in widely different languages) but be aware that this may be difficult because of lack of definition of the task itself.

2 2048 9 9 billion names of God the integer/Worship of false idols A ASCII art diagram converter AVL tree Addition-chain exponentiation Aspect Oriented Programming Assertions in design by contract AudioAlarm Audio Overlap Loop Audio frequency generator B Banker's algorithm Base64 encode data Bilinear interpolation Birthday problem Blackjack strategy Boids simulation Brace expansion C Calculate International Securities Identification Number Check input device is a terminal Check output device is a terminal Chess player Circle sort Code segment unload Combinations with repetitions/Square Digit Chain Commatizing numbers Compare a list of strings Create an object/Native demonstration Currency D Decimal floating point number to binary Decision tables Deming's Funnel Dice game probabilities Dijkstra's algorithm E Egyptian fractions Elementary cellular automaton Elementary cellular automaton/Infinite length Elementary cellular automaton/Random Number Generator Elliptic curve arithmetic Emirp primes Entropy/Narcissist F FASTA format FTP Farey sequence File extension is in extensions list Find URI in text Find duplicate files Find first and last set bit of a long integer

F cont. Find palindromic numbers in both binary and ternary bases Free polyominoes enumeration G Generalised floating point addition Generalised floating point multiplication Get system command output I I.Q. Puzzle IPC via named pipe IRC gateway Idiomatically determine all the characters that can be used for symbols Idiomatically determine all the lowercase and uppercase letters Implicit type conversion Index finite lists of positive integers Input/Output for Lines of Text Input/Output for Pairs of Numbers J Just in time processing on a character stream K Kahan summation L Levenshtein distance/Alignment Longest Common Substring Lucky and even lucky numbers M Make a backup file Modular arithmetic Montgomery reduction Morpion solitaire Most frequent k chars distance Multi-dimensional array Multiline shebang Musical scale N N-body problem NYSIIS Names to numbers Native shebang Nonoblock Nonogram solver O Old Russian measure of length One-time pad OpenGL Pixel Shader OpenWebNet Password P Parse EBNF Parse command-line arguments Perlin noise Permutations with repetitions Playfair cipher Poker hand analyser Primes - allocate descendants to their ancestors Process SMIL directives in XML data Proper divisors R Ramsey's theorem

R cont. Read a file character by character/UTF8 Readline interface Recursive descent parser generator Remote agent/Agent interface Remote agent/Agent logic Remote agent/Simulation Repeat Reverse the gender of a string Rosetta Code/List authors of task descriptions Rosetta Code/Run examples Rosetta Code/Tasks sorted by average lines of code Run as a daemon or service S Scripted main Self-hosting compiler Separate the house number from the street name Shortest common supersequence Solving coin problems Sorting algorithms/Cycle sort Sorting algorithms/Patience sort Sorting algorithms/Tree sort on a linked list Starting a web browser Straddling checkerboard Subset sum problem Suffix tree Superpermutation minimisation T Table creation Taxicab numbers Terminal control/Restricted width positional input/No wrapping Terminal control/Restricted width positional input/With wrapping Test integerness Text to HTML Time-based One-time Password Algorithm Tokenize a string with escaping Topological sort/Extracted top item Transportation problem Truth table U Ukkonen’s Suffix Tree Construction Unicode polynomial equation Untrusted environment User defined pipe and redirection operators Using a Speech engine to highlight words Using the Meetup.com API V VList W Waveform analysis/Doh ray me Waveform analysis/Top and tail X XML Validation

---

Requiring Attention

Examples

These tasks have implementations in Fortran, but somebody, somewhere, decided that the example implementation was faulty or in some other way requiring attention. If you're familiar with the task and language, please consider reviewing/correcting the example and removing the notice.

---

Other pages

These are other pages related to Fortran which require attention; with your knowledge and assistance, we can improve the quality of the site's content.

G

• G77

---

Not Considered

These tasks are not generally counted toward "unimplemented", as somebody, somewhere, decided that Fortran was inappropriate for these tasks, or implementations of them would be unenlightening. Feel free to try your hand at them anyway.

A Abstract type Add a variable to a class instance at runtime C Call an object method Classes Create a file on magnetic tape

D Delegates Dynamic variable names F First-class functions First-class functions/Use numbers analogously Function composition

I Interactive programming O Object serialization P Proof

---

End of List

Again, feel free to try your hand at any of the tasks listed on this page.