Learn C programming fundamentals like data types, control flow, functions, pointers, and memory allocation while exploring debugging, profiling, and optimization tools like GDB and gcc.

clang.tar.gz

RunC

RunCwithGNUflags

RunCwithlmflag

Run_go_file 

RunC-without_warning_flag

Compile-only

doNothing

Posix

RunCFileGo

Compile-go-file

Compile-go-debugging-file

OpenMP

Make

MPI4Threads

MPI8Threads

Octave

RunC-without_warning_flag-KS

This comprehensive course covers the fundamentals and advanced concepts of C programming to build a solid foundation for your programming journey. You’ll learn about essential topics like data types, variables, constants, and C statements, along with deeper explorations of control flow in C, including for loops and conditional statements in C. You’ll also learn about C functions, scope of variables, function arguments, and work with arrays, strings, and pointers in C.

You’ll gain hands-on experience with dynamic memory allocation, stack vs. heap, C standard library, and advanced topics such as binary files, input and output streams, and header files. The course also teaches compiling in C, linking in C, and debugging with tools like GNU debugger (GDB) and gprof for code profiling. By mastering these concepts, you’ll confidently program in C and optimize your code using gcc optimization flags.

Learn C

# Opening and closing files with `fopen` and `fclose`

Before a file can be read or written to, it has to be opened using the `fopen` function, which takes as arguments a string corresponding to the filename, and a second argument (also a string) corresponding to the mode in which the file is accessed. The **mode** can be specified, for example, as read (`"r"`), write (`"w"`) or append (`"a"`). The `fopen` function then returns a pointer to the (open) file. After reading and/or writing to a file, we need to close it using the `fclose` function.

# Reading and writing to files

There are many functions in `stdio.h` for reading from and writing to files. There is a collection of functions for reading and writing ASCII (text) data, and there are functions for dealing with binary data.

For ASCII files, there are functions to read and write single characters one at a time (`getc` and `putc`), there are functions to read and write formatted output (`fscanf` and `fprintf`), and there are functions to read and write single lines at a time (`fgets` and `fputs`).

## Writing to an ASCII file

Here's an example program that outputs a table of temperature values in Fahrenheit and Celsius to an ASCII file.

Learn to read and write data to files using fopen and fclose in C.

Input and Output with Files

Introduction to C Programming

Data Types in C

C Operators and C Expressions

Control Flow in C

Functions in C

Complex Data Types

Stack vs. Heap

Pointers in C

C string

Input and Output Stream

Macros and the C Preprocessor

Header Files, Compiling and Linking

C Debugger

Code Profiling

Parallel Programming in C

Project: Using a Bootstrapped t-test

Conclusion

Miscellaneous

Appendix: Setting Up the Environment

Input and Output with Files

Opening and closing files with `fopen` and `fclose`

Reading and writing to files

Project: Using a Bootstrapped t-test

Input and Output with Files

Opening and closing files with fopen and fclose

Reading and writing to files

Opening and closing files with `fopen` and `fclose`