stdrand.h is a simple C library that provides functions for generating random integers and making random choices from arrays of characters or integers.

• Functions
  • long rand_int(const long min, const long max) (Details)
  • char rand_choice_char(const char* arr) (Details)
  • long rand_choice_int(const int* arr, const int s) (Details)
  • char rand_char(const char a, const char b) (Details)

Generates a random integer within the specified range [min, max] (inclusive).

• Parameters:

  • min: The minimum value of the range.
  • max: The maximum value of the range.

• Returns:

  • A random integer within the specified range.
  • If min is greater than max, the function returns -1.

Selects a random character from the provided character array.

• Parameters:

  • arr: A pointer to a null-terminated character array.

• Returns:

  • A randomly chosen character from the array.

Selects a random integer from the provided integer array.

• Parameters:

  • arr: A pointer to an array of integers.
  • s: The size of the integer array.

• Returns:

  • A randomly chosen integer from the array.

Generates a random character between two given characters a and b.

• Parameters:

  • a: The lower bound character.
  • b: The upper bound character.

• Returns:

  • A random character between a and b.

1. Include the stdrand.h header in your C source code.
2. Call the appropriate functions based on your requirements.

#include "stdrand.h"
#include <stdio.h>

int main() {
    long randomNum = rand_int(10, 20);
    printf("Random number between 10 and 20: %ld\n", randomNum);
    
    char choices[] = "ABCDEF";
    char randomChar = rand_choice_char(choices);
    printf("Random character: %c\n", randomChar);
    
    int numArray[] = {100, 200, 300, 400, 500};
    long randomIntArray = rand_choice_int(numArray, sizeof(numArray) / sizeof(int));
    printf("Random integer from array: %ld\n", randomIntArray);
    
    char randomGeneratedChar = rand_char('A', 'Z');
    printf("Random generated character between A and Z: %c\n", randomGeneratedChar);
    
    return 0;
}

This library is released under the MIT License.