https://www.delftstack.com/howto/c/

C Howtos

C Bit

• Bitwise Operations in C

C String

• Create Formatted Strings in C
• Truncate String in C
• Concatenate String and Int in C
• Trim a String in C
• Use the strdup Function in C
• Use the strsep Function in C
• Check if String Contains Substring in C
• Convert String to Lowercase in C
• Array of Strings in C
• Use strtok Function in C
• Compare Strings in C
• Concatenate Strings in C
• Get Substring in C
• Convert a String to Integer in C
• Get a Substring in C
• Convert an Integer to a String in C

C Format Specifier

• Format Specifiers in C

C Compile

• Compile a C File on Mac

C Memory

• Release the Allocated Memory for Nodes in the Linked List in C
• Use shmget to Allocate Shared Memory in C
• Use the bzero Function in C

C Error

• Stack Smashing Detected Error in C

C Volatile

• The Volatile Qualifier in C

C Function

• Use the mmap Function to Write to the Memory in C

C Struct

• Difference Between Struct and Typedef Struct in C
• Use struct Alignment and Padding in C
• Initialize Array of Structs in C
• Return a Struct From Function in C
• Allocate Struct Memory With malloc in C
• Initialize a Struct in C
• Array of Structs in C

C Operator

• Types of Shift Operators in C
• Generate Random Number in C
• i++ vs ++i in C

C Boolean

• Use Boolean Values in C

C++ C

• Use of extern C in C++

C Pointer

• ** in C
• Function Pointer in C
• Use Pointer Ampersand Notation in C
• Fix Free Invalid Pointer Error in C

C Scalar

• Excess Elements in Scalar Initializer Warning in C

C Print

• %p Format Specifier in C

C Bitset

• Compare Bits in C

C Process

• Control Daemon Process From Another Process in C
• Use the sched_setaffinity Function in C
• Kill a Child Process in C
• Use the execlp Function in C
• Use the exit Function in C
• Use the fork Function in C
• Use the waitpid Function in C
• argc and argv in C
• The execvp Function in C
• wait Function in C

C File

• Get Extended Attributes of File in C
• Read Binary File in C
• Read File Line by Line Using fscanf in C
• Use the opendir Function in C
• Create a New Directory in C
• Use File Redirection in C
• open vs fopen in C
• Get File Size in C
• The dup2 Function in C
• Write to File in C
• Read a File in C
• Check if a File Exists in C

C Signal

• Handle SIGINT Signal in C
• Send Signal to a Process in C

C Time

• Measure System Time With getrusage Function in C
• Use the gettimeofday Function in C
• Use a Timer in C

C Atomic

• Use Atomic Types in C

C Semaphore

• Use a Semaphore in C

C Thread

• Use the pthread_join Function in C
• Use thread_local Variables in C
• Use the C11 Threads Library in C
• Get Thread ID in C

C Argv

• How optind Variable Gets Assigned in C

C Networking

• Open a Socket in C
• Use the getaddrinfo Function in C
• Find System Hostname in C

C Float

• Print Numbers in Scientific Notation in C

C Pipe

• Read Data From Pipe in C

C IO

• Align Columns in printf Function in C
• Use the feof Function in C
• Flush stdout Output Stream in C
• Get User Input in C
• Print Formatted Text in C
• Print to stderr in C

C Algorithm

• Implement Caesar's Cipher in C

C Crypt

• Use the crypt Function in C

C Goto

• Use the goto Statement in C

C Environment

• Access Environment Variables Using setenv Function in C

C Swap

• Implement Swap Function in C

C Math

• The Round Function in C
• Exponents in C
• Modulo Operator in C

C Mutex

• Use Mutex Lock in C

C Array

• Copy Char Array in C
• Dynamically Allocate an Array in C
• Clear Char Array in C
• Array of Strings in C
• Initialize Char Array in C
• Print Char Array in C
• Initialize an Array to 0 in C
• Array of Structs in C
• Get the Size of Array in C

C Char

• Get Length of Char Array in C
• Use the getchar Function in C
• Compare Char in C
• Convert Integer to Char in C
• Get a Substring in C

C Dictionary

• Implement Dictionary in C

C Shift

• Use Bitwise Shift Operations in C

C Sleep

• Use the nanosleep Function in C

C Plot

• How to Plot Data in C

C Int

• Convert Char* to Int in C
• Convert Integer to Char in C
• Convert an Integer to a String in C

C Directory

• Get Current Working Directory in C

C Sorting

• Sort Function in C

C Extern

• The extern Keyword in C

C Preprocessor

• #ifndef Include Guards in C

C Bits

• Bit Masking in C

C Static

• Static Variable in C

C Enum

• Use typedef enum in C

C Integer

• Convert a String to Integer in C