Holberton School

C Coding

0x00. C - Hello, World

• How to compile using gcc
• What is the official Holberton C coding style and how to check your code with betty-style

0x01-variables_if_else_while

• What are the logical operators (sometimes called boolean operators) and how to use them
• What the the relational operators and how to use them
• How to declare variables of types char, int, unsigned int
• How to print the values of variables of type char, int, unsigned int with printf
• What is the ASCII character set
• What are the purpose of the gcc flags -m32 and -m64

0x02-functions_nested_loops

• What are nested loops and how to use them
• What is a function and how do you use functions
• What is the difference between a declaration and a definition of a function
• What is a prototype
• Scope of variables
• What are the gcc flags -Wall -Werror -pedantic -Wextra
• What are header files and how to to use them with #include

0x03-debugging

• What is debugging
• What are some methods of debugging manually
• How to read the error messages

0x04-more_functions_nested_loops

• What are nested loops and how to use them

0x05-pointers_arrays_strings

• What are pointers and how to use them
• What are arrays and how to use them
• What are the differences between pointers and arrays
• How to use strings and how to manipulate them
• Scope of variables

0x06-pointers_arrays_strings

• More pointers, arrays and strings

0x07-recursion

• What is recursion
• How to implement recursion
• In what situations you should implement recursion
• In what situations you shouldn’t implement recursion

0x08-argc_argv

• How to use arguments passed to your program
• What are two prototypes of main that you know of, and in which case do you use one or the other
• How to use attribute((unused)) or (void) to compile functions with unused variables or parameters

0x09-malloc_free

• What is the difference between automatic and dynamic allocation
• What is malloc and free and how to use them
• Why and when use malloc
• How to use valgrind to check for memory leak

0x0A-preprocessor

• What are macros and how to use them
• What are the most common predefined macros
• How to include guard your header files

0x0B-more_malloc_free

• How to use the exit function
• What are the functions calloc and realloc from the standard library and how to use them