C Programming Language • Static Variables • File Descriptor Management • Buffer Management • Memory Management • Error Management • Coding Standards (Norm Compliance)

Get Next Line

A function that reads a text file referenced by the file descriptor, one line at a time, through successive calls to this function.

External Functions Allowed: read, malloc, free. No global variables allowed.

Usage

git clone git@github.com:nfauconn/get_next_line.git
cd get_next_line/Project

• Files: get_next_line.h, get_next_line.c, get_next_line_utils.c

• Return Value:

  • The content of the line read, followed by a '\n', except when the end of the file has been reached (line returned as it is): correct behavior
  • NULL: nothing else to read OR an error occurred

• get_next_line() has undefined behavior if, between two calls, the file pointed to by the file descriptor has been modified while the file has not been completely read.

• Reading from a binary file is considered to have undefined behavior.

Files are located in test_files/

> cc -Wall -Wextra -Werror -D BUFFER_SIZE=1000 main.c get_next_line.c get_next_line_utils.c 
> ./a.out <file>

Feel free to test different BUFFER_SIZE values.

Usage with multiple fds

> cc -Wall -Wextra -Werror -D BUFFER_SIZE=1000 main_bonus.c get_next_line_bonus.c get_next_line_utils_bonus.c 
> ./a.out <file1> <file2> <file3> <...>