After installing a new library, run a test program to ensure that the header file and library can be found. Ensuring that everything is installed correctly means you can start coding with the new library right away, otherwise you can work through installation oddities.
- [Instructor] The C language's native environment … is the command prompt found in a terminal window these days. … It's a natural way to compile code … and link-specific libraries, … especially for the program examples in this course. … For Linux and the Mac, you can use a terminal window … to compile and run sample C programs. … In Windows 10, install the Ubuntu Linux shell. … Once a package manager has installed the desired library, … the next step is to run a test program … that ensures everything works. … Typically, in the test program, … I display the library's version number. … Here in the Ubuntu Linux shell in Windows 10, … I've used the advanced package manager tool … to install the lib jpeg library. … The header file is named jpeglib.h. … Now, I'll list the contents of this header file … to find the version number defined constant. … And we'll scroll down a few screens. … There it is. … Near the bottom, … JPEG_LIB_VERSION is the defined constant name … and the value is 62. …
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: Linking a library: Command prompt