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Some new C programming examples - files, structs, unions etc
A series of new "C" examples have been added to the web site - a course for a small group allowed me to go somewhat away from the more normal run yesterday and write some new illustrations in front of them. Call by value v call by pointer comparison: link Using extern to share a variable between two different sources: link and link Handling command line parameters through pointers: link Structures, and pointers to structures: link and link Unions, where memory is shared between variables: link File handling through open and read, fopen and fgets compared: link and link And some C++ examples: Fomatting floating point numbers in C++: link Using a vector (in effect an object that's an array but can be extended as required: link All examples have comments and sample outputs included and will open in a new window if you click on the links. All simple examples, and they're often the best! (written 2007-12-19) Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles C204 - C and C based languages - Functions, Macros and programs in multiple files[3721] Naming blocks of code, structures and Object Orientation - efficient coding in manageable chunks - (2012-05-06) [3717] Returning extra results from a function in C - (2012-05-03) [3237] Using functions to keep look and feel apart from calculations - simple C example - (2011-04-09) [2841] C Course exercise and sample answer - source in 2 files - (2010-06-30) [2575] Sharing variables between files of code in C - extern - (2010-01-14) [2570] Function Prototypes in C - (2010-01-11) [1163] A better alternative to cutting and pasting code - (2007-04-26) [775] Do not duplicate your code - (2006-06-23) C207 - C and C based languages - Pointers and references [3399] From fish, loaves and apples to money, plastic cards and BACS (Perl references explained) - (2011-08-20) [3386] Adding the pieces together to make a complete language - C - (2011-08-11) [3242] How to return 2 values from a function (C++ and C) - more uses of pointers - (2011-04-10) [3238] Bradshaw, Ben and Bill. And some C and C++ pointers and references too. - (2011-04-09) [3121] New year, new C Course - (2011-01-05) [3004] Increment operators for counting - Perl, PHP, C and others - (2010-10-18) [2670] Pointers to Pointers to Pointers - what is the point? - (2010-03-10) [2572] The what and why of C pointers - (2010-01-13) [2005] Variables and pointers and references - C and C++ - (2009-01-23) [1497] Training Season Starts again! - (2008-01-07) [1155] Pointers in C - (2007-04-19) C209 - C and C based languages - Structures and Unions [3145] Structures v Structure Pointers in C. How, which, why. - (2011-01-25) [3122] When is a program complete? - (2011-01-06) [2573] C Structs - what, how and why - (2010-01-13) [1669] What are Unions (C programming) - (2008-06-08) [1584] Using Structs and Unions together effectively in C - (2008-03-21) [1572] C - structs and unions, C++ classes and polymorphism - (2008-03-13) C235 - C and C based languages - I/O in C++ [3810] Reading files, and using factories to create vectors of objects from the data in C++ - (2012-07-21) [3807] Reading (and writing) files in C++ - (2012-07-18) [3390] Printing objects in C++ - (2011-08-13) [3252] C++ - unknown array size, unknown object type. Help! - (2011-04-17) [3124] C++ - putting the language elements together into a program - (2011-01-08) [1675] Comparing Objects in C++ - (2008-06-13) C238 - C and C based languages - Templates [3982] Using a vector within an object - C++ - (2013-01-19) [3509] Operator Overloading, Exceptions, Pointers, References and Templates in C++ - new examples from our courses - (2011-11-06) [3388] Templates in C++ - defining a family pattern of methods / functions - (2011-08-12) [3245] Collections in C and C++ - arrays, vectors and heap memory blocks - (2011-04-12) 561e
Some other Articles
A story about benchmarking PHPThe Christmas Letter Next course - 7th January 2008, Regular Expressions FSB leaves its members feeling like mushrooms Some new C programming examples - files, structs, unions etc Decisions - small ones, or big ones? Shopping for Christmas and looking forward Tcl/Tk - updating your display while tasks are running Using Tcl/Tk resource files for flexible applications Making a variable dynamically visible in a Tcl/Tk GUI |
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