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   • Programming language for self-modifying code?

     Top Answer

     Answered Jun 16, 2010 · 49 votes

     Malbolge would be a good place to start. Every instruction is self-modifying, and it's a lot of fun(*) to play with.

     (*) Disclaimer: May not actually be fun.

     Other Answers

     Answered Jun 16, 2010 · 24 votes

     I highly recommend Lisp. Lisp data can be read and exec'd as code. Lisp code can be written out as data.

     It is considered one of the canonical self-modifiable languages.

     Example list(data):

     '(+ 1 2 3) -

     or, calling the data as code

     (eval '(+ 1 2 3)) -

     runs the + function.

     You can also go in and edit the members of the lists on the fly.

     edit:

     I wrote a program to dynamically generate a program and evaluate it on the fly, then report to me how it did compared to a baseline(div by 0 was the usual report, ha).

     Other Answers

     Answered Mar 20, 2011 · 16 votes

     Every answer so far is about reflection/runtime compilation, but in the comments you mentioned you're interested in actual self-modifying code - code that modifies itself in-memory.

     There is no way to do this in C#, Java, or even (portably) in C - that is, you cannot modify the loaded in-memory binary using these languages.

     In general, the only way to do this is with assembly, and it's highly processor-dependent. In fact, it's highly operating-system dependent as well: to protect against polymorphic viruses, most modern operating systems (including Windows XP+, Linux, and BSD) enforce W^X, meaning you have to go through some trouble to write polymorphic executables in those operating systems, for the ones that allow it at all.

     It may be possible in some interpreted languages to have the program modify its own source-code while it's running. Perl, Python (see here), and every implementation of Javascript I know of do not allow this, though.

     Check all answers on Stack Overflow

     1/5

   • Code for identifying programming language in a text file

     Top Answer

     Answered Aug 30, 2010 · 11 votes

     You have a problem of document classification. I suggest you read about naive bayes classifiers and support vector machines. In the articles there are links to libraries which implement these algorithms and many of them have C++ interfaces.

     Other Answers

     Answered Jun 16, 2010 · 24 votes

     I highly recommend Lisp. Lisp data can be read and exec'd as code. Lisp code can be written out as data.

     It is considered one of the canonical self-modifiable languages.

     Example list(data):

     '(+ 1 2 3) -

     or, calling the data as code

     (eval '(+ 1 2 3)) -

     runs the + function.

     You can also go in and edit the members of the lists on the fly.

     edit:

     I wrote a program to dynamically generate a program and evaluate it on the fly, then report to me how it did compared to a baseline(div by 0 was the usual report, ha).

     Other Answers

     Answered Mar 20, 2011 · 16 votes

     Every answer so far is about reflection/runtime compilation, but in the comments you mentioned you're interested in actual self-modifying code - code that modifies itself in-memory.

     There is no way to do this in C#, Java, or even (portably) in C - that is, you cannot modify the loaded in-memory binary using these languages.

     In general, the only way to do this is with assembly, and it's highly processor-dependent. In fact, it's highly operating-system dependent as well: to protect against polymorphic viruses, most modern operating systems (including Windows XP+, Linux, and BSD) enforce W^X, meaning you have to go through some trouble to write polymorphic executables in those operating systems, for the ones that allow it at all.

     It may be possible in some interpreted languages to have the program modify its own source-code while it's running. Perl, Python (see here), and every implementation of Javascript I know of do not allow this, though.

     Check all answers on Stack Overflow

     2/5

   • Code::Blocks, process terminated with status 2 unexpected "(" C programming language

     Top Answer

     Answered Mar 28, 2015 · 1 votes

     You can try this. I'm not sure that will be work for you. Setting->Compiler->Toolchain Executable->auto detect and then OK.

     Check all answers on Stack Overflow

     3/5

   • Programming language tree

     Top Answer

     Answered Aug 04, 2013 · 2 votes

     Based on Wikipedia's article "Timeline of programming languages":

     Assembly --> Speedcoding --> FORTRAN --> ALGOL --> Simula --------------------+ \ \ \ \ +--> CPL --> BCPL --> B --> C --> C++-

     Check all answers on Stack Overflow

     4/5

   • Programming language C

     Top Answer

     Answered Feb 07, 2016 · 2 votes

     The arrays are passed by pointers (the way references are used in C). So when the data is modified in the body of the function, the calling function can access the modified data.

     After the function is executed all the variables must be lost and nothing must be saved in from array after function is executed.

     True, objects that have liftetimes within the lifetime of the function will be lost when the function exists. However the function's lifetime has no effect on objects that have existed before it or after it.

     Check all answers on Stack Overflow

     5/5

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2. www.geeksforgeeks.org › pl-sql-tutorialPL/SQL Tutorial: Complete Guide to Database Procedures ...

   www.geeksforgeeks.org › pl-sql-tutorial

   • Cached

   Apr 25, 2024 · PL/SQL, in simple terms, is a programming language used for managing data in databases. It combines SQL for data manipulation and procedural features for building applications. It’s like a toolkit that lets you efficiently interact with and control your Oracle database. Prerequisites for this PL/SQL Tutorial.

3. en.wikipedia.org › wiki › List_of_programmingList of programming languages by type - Wikipedia

   en.wikipedia.org › wiki › List_of_programming

   • Cached

   3 days ago · Contents. hide. (Top) Agent-oriented programming languages. Array languages. Aspect-oriented programming languages. Assembly languages. Authoring languages. Command-line interface languages. Compiled languages. Concatenative programming languages. Concurrent languages. Constraint programming languages. Curly-bracket languages. Dataflow languages.

4. People also ask

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   • PL/SQL is a block-structured language. The written programs in PL/SQL are logical blocks that can contain any number of nested sub-blocks. PL/SQL ensures logical processing of SQL statements by enhancing the data’s safety, portability, and robustness.

   PL SQL Tutorial: Everything you need to know about PL SQL - Great Lear…

   www.mygreatlearning.com/blog/pl-sql-tutorial/

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   Which programming languages are declarative?

   • (Pure) functional and logic-based programming languages are also declarative, and constitute the major subcategories of the declarative category. This section lists additional examples not in those subcategories.

   List of programming languages by type - Wikipedia

   en.wikipedia.org/wiki/List_of_programming_languages_by_type

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   What are stack based languages?

   • Stack-based languages are a type of data-structured language that are based on the stack data structure. Synchronous programming languages are optimized for programming reactive systems, systems that are often interrupted and must respond quickly. Many such systems are also called realtime systems, and are used often in embedded systems . Examples:

   List of programming languages by type - Wikipedia

   en.wikipedia.org/wiki/List_of_programming_languages_by_type

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   What is a system programming language?

   • A system programming language usually refers to a programming language used for system programming; such languages are designed for writing system software, which usually requires different development approaches when compared with application software.

   List of programming languages by type - Wikipedia

   en.wikipedia.org/wiki/List_of_programming_languages_by_type

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5. www.postgresql.org › docs › currentChapter 43. PL/pgSQL — SQL Procedural Language - PostgreSQL

   www.postgresql.org › docs › current

   • Cached

   May 9, 2024 · PL/pgSQL under the Hood 43.11.1. Variable Substitution 43.11.2. Plan Caching 43.12. Tips for Developing in PL/pgSQL 43.12.1. Handling of Quotation Marks 43.12.2. Additional Compile-Time and Run-Time Checks 43.13. Porting from Oracle PL/SQL 43.13.1. Porting Examples 43.13.2. Other Things to Watch For 43.13.3. Appendix

6. www.mygreatlearning.com › blog › pl-sql-tutorialPL SQL Tutorial: Everything you need to know about PL SQL

   www.mygreatlearning.com › blog › pl-sql-tutorial

   • Cached

   Apr 30, 2024 · Table of contents. PL/SQL is the Oracle Corporation’s procedural extension for SQL, i.e. Procedural Language for Structured Query Language (SQL) and the Oracle relational database. It was developed in the late 1980s. PL/SQL is out there in Oracle Database, TimesTen in-memory database, and IBM DB 2. PL/SQL is a block-structured language.

   • Datatype: Description

7. en.wikipedia.org › wiki › Lisp_(programming_language)Lisp (programming language) - Wikipedia

   en.wikipedia.org › wiki › Lisp_(programming_language)

   • Cached

   2 days ago · Lisp (historically LISP, an abbreviation of "list processing") is a family of programming languages with a long history and a distinctive, fully parenthesized prefix notation. [3] Originally specified in the late 1950s, it is the second-oldest high-level programming language still in common use, after Fortran.

   • First appeared: 1960; 63 years ago
   • Developer: Steve Russell, Timothy P. Hart, Mike Levin

   • Designed by: John McCarthy

8. en.wikipedia.org › wiki › APL_(programming_language)APL (programming language) - Wikipedia

   en.wikipedia.org › wiki › APL_(programming_language)

   • Cached

   2 days ago · APL (named after the book A Programming Language) is a programming language developed in the 1960s by Kenneth E. Iverson. Its central datatype is the multidimensional array . It uses a large range of special graphic symbols [4] to represent most functions and operators, leading to very concise code.

9. www.qiminfo.ch › en › what-is-a-pl-sql-developerWhat is a PL/SQL developer? - Qim info

   www.qiminfo.ch › en › what-is-a-pl-sql-developer

   • Cached

   14 hours ago · To answer this question, let’s first define what PL/SQL is. PL/SQL stands for Procedural Language for SQL, the language provided by Oracle to develop packages, procedures, functions, and triggers. A PL/SQL developer is a specialist who, in addition to their experience with relational databases (SQL), is also trained in writing procedural code ...