Setting a good example.

• An example of array initialization in C
• Length of array in C
• Sort an array of strings in C
• Binary search in C using bsearch
• Pointers in C with examples
• Converting Cairo output to PNG
• Show the types of all the ASCII characters
• Example of command-line arguments in C
• Print today's date in C
• Convert decimal to binary in C
• A simple "die" function for C - example of variable number of arguments
• Printf, doubles and decimal places
• Example of a doubly-linked list in C
• Generate a Fibonacci series in C
• Find a substring of a string in C
• C function pointer to function with varying number of arguments
• Get the size of a file in C
• Example of getopt in C
• Read a compressed file with gzFile, gzopen, and gzread in C
• An example of iconv
• Example of C if statement
• Compare strings ignoring case in C
• An example of an inline qsort
• Example of insertion sort in C
• Algorithm to convert katakana to hiragana in UTF-8
• Find the largest of n numbers in C
• Calculate the Levenshtein edit distance in C
• C macros __LINE__, __FILE__ and __func__
• List the files in a Unix directory with C
• Example program in C to detect palindromes
• Set the modification time of a PNG
• Create a PNG with text segments
• An example of pointer arithmetic
• Get a list of prime numbers in C
• Print hexadecimal versions of numbers in C
• Left-justify printf output
• Example of quicksort in C
• Example of random number generation in C
• Read a whole file into memory in C
• Recursively list directories in C
• Make a reentrant parser with Flex and Bison
• Program to reverse a string without using the string library
• Example of a singly-linked list in C
• SQLite C example: bind data
• SQLite C example: insert data
• SQLite C example: select data
• Convert a string to a double in C
• Convert a string to an integer in C
• Strip leading and trailing space in C
• An example of ualarm and setjmp
• An example of using regular expressions in C
• Write a PNG file using C and libpng
• Xlib window which tells its own position and size
• Responding to resize events with Xlib
• A simple text window using Xlib
• Responding to window deletion messages from the window manager
• Open and read a gzip compressed file with zlib in C
• An example of compressing with zlib in C
• Compressing CGI output with Perl
• Example of ptrace for FreeBSD
• Convert X bitmaps (.xbm) to PNG - example of Pozkanzer tools
• Showing the modified time of an HTML page using JavaScript
• Visit all cells in an Excel worksheet
• Print sizes of all images in a directory
• IPC::Run3 for testing binaries
• Get a hash value using XS
• An example of using regular expressions in Perl XS