École 42

Get_Next_Line

This projects is about creating a function that, allows to read a line ending with a newline character ('\n') from a file descriptor, without knowing its size beforehand. One of the goal of this project is to learn a highly interesting new concept in C programming: static variables, and to gain a deeper understanding of allocations, whether they happen on the stack memory or in the heap memory, the manipulation and the life cycle of a buffer, the unexpected complexity implied in the use of one or many static variables.

Getting Started

Compiling

Run the following commands:

• To compile
  • make
• To remove objects:
  • make clean
• To remove objects and binary file (program):
  • make fclean
• To re-compile:
  • make re

Executing

To test the function, compile with main.c.

gcc main.c src/get_next_line.c

./a.out tests/some_lines.txt

If wanted to test with multiple file descriptors, compile with main-multiple-fds.c

gcc main-multiple-fds.c src/get_next_line.c

./a.out tests/some_lines.txt tests/nl_and_eof_one.txt

Screenshots

Testing the library: