//#include <string.h>
char** strings = NULL;
struct ENC {
char* l = NULL;
char* r = NULL;
};
ENC enc;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
String s="LEFT";
enc.l = (char*)malloc(sizeof(s.length()+1));
enc.l = s.c_str();
Serial.println(enc.l);

//--------------------------
  int row=10;
     // Allocate memory for the array of strings
    strings = (char**)malloc(row * sizeof(char*));
    if (strings == NULL) {
        fprintf(stderr, "Memory allocation failed\n");
  //      return 1;
    }

    // Allocate memory for each string and assign values
    for (int i = 0; i < row; i++) {
      long rnd=random(0,1000000);
  //     Serial.print("\trnd:");    Serial.println(rnd);
     String str = "-----" + String(rnd) + "---";
      rnd=random(0,20);
      for (int i = 0; i < rnd; i++) {
       str+=i;
    }
  //   Serial.print("\tstr:");    Serial.println(str);
        // Allocate memory for each string
        int len=str.length();
        strings[i] = (char*)malloc((len + 1)* sizeof(char));
        if (strings[i] == NULL) {
            fprintf(stderr, "Memory allocation failed\n");
     //       return ;
        }
        // Assign values to each string
        sprintf(strings[i], str.c_str());
    }

    // Print the strings present in the array
    for (int i = 0; i < row; i++) {
        printf("%s\n", strings[i]);
    }

    // Free memory for each string
    for (int i = 0; i < row; i++) {
        free(strings[i]);
    }
    // Free memory for the array of pointers
    free(strings);

}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}
/*
// C Program to illustrate how to create a dynamic array of
// strings
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

// define the maximum length of the string you will store in
// the array
#define MAX_STRING_LENGTH 20

int main()
{
    // Initialize a double pointer to store the array of
    // strings
    char** strings = NULL;
    // Declare the initial size of the dynamic array
    int size = 5;

    // Allocate memory for the array of strings
    strings = (char**)malloc(size * sizeof(char*));
    if (strings == NULL) {
        fprintf(stderr, "Memory allocation failed\n");
        return 1;
    }

    // Allocate memory for each string and assign values
    for (int i = 0; i < size; i++) {
        // Allocate memory for each string
        strings[i] = (char*)malloc((MAX_STRING_LENGTH + 1)
                                   * sizeof(char));
        if (strings[i] == NULL) {
            fprintf(stderr, "Memory allocation failed\n");
            return 1;
        }
        // Assign values to each string
        sprintf(strings[i], "Student%d", i);
    }

    // Print the strings present in the array
    for (int i = 0; i < size; i++) {
        printf("%s\n", strings[i]);
    }

    // Free memory for each string
    for (int i = 0; i < size; i++) {
        free(strings[i]);
    }
    // Free memory for the array of pointers
    free(strings);

    return 0;
}

*/