To build your own C library, create a source code file full of functions for the library, compile to object code, then archive the object code into a library file. Ensure that a header file is created to prototype the library's functions. You can compile and link the library in the same directory, or copy it to the /usr/local/include directory.
- [Instructor] If you can code your own programs, … you can write your own C libraries. … Its not that difficult providing that you know a few … incantations in these steps. … Number one, write one or more source code files … for the functions you need. … Two, compile the source code into object code, … and three, create an archive of the object code file. … The archive becomes the library which you can then link … into other programs as you see fit. … Now, when you write the source code, … you don't need a main function. … Just write the functions to include in the library. … Create a header file for the library, … one that prototypes the functions, … declares constants, type defs, and so on, … and to compile the source code in the object code … without creating a program, you add … the dash little c compiler switch. … To create the archive, you use the command line utility ar. … Follow ar with the switches rcs and then the name … of the library in the format libname.a … Name becomes the name of the library. …
Author
Dan Gookin
Released
10/1/2019- Finding, installing, and linking libraries
- Accessing and generating XML data
- Working with JSON
- Working with the libcurl library
- Text programming
- Reading, writing, and manipulating JPEG images
- Working with PNG images
Skill Level Advanced
Duration
Views
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Introduction
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Using the exercise files1m 2s
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Working with the code2m 45s
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1. Setup and Configuration
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Understanding libraries2m 50s
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Finding a C library2m 44s
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Installing a library4m 15s
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Liking a library: IDE4m 10s
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2. Data Structures
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Understanding XML2m 23s
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Accessing XML data3m 26s
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Generating XML data3m 57s
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Working with JSON2m 39s
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Accessing JSON data3m 10s
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Reading JSON data3m 46s
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Creating JSON output3m 35s
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3. Web Access
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Testing libcurl2m 3s
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Fetching a web page3m 47s
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Saving web data3m 31s
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Sending data2m 35s
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4. Text Programming
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Working with wide characters3m 19s
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Building an ncurses program2m 27s
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Controlling the text screen2m 32s
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Making color text2m 56s
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Exploring ncurses input4m 6s
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5. Computer Graphics
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Accessing a JPEG2m 31s
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Manipulating JPEG images3m 5s
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Working with PNG images3m 57s
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Modifying a PNG image2m 26s
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Conclusion
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Writing your own library4m 19s
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Next steps1m 17s
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Video: Writing your own library