strcpy in c++ code example

Example 1: c++ strcpy_s

//When to use strcpy_s:
//	Use strcpy_s to copy a const char[] array in read and write memory
//How to use strcpy_s:

//The location where the array is going to be copied to
char* ptrToArray = new char[sizeof(testArray)]

//The Array that gets copied To ptrToArray;
const char[] testArray = "Test Array";

strcpy_s(ptrToArray, sizeof(testArray), testArray);

//Modify the copied array
testArray[i] = 'A'

Example 2: strcpy

/* strcpy example */
#include <stdio.h>
#include <string.h>

int main ()
{
  char str1[]="Sample string";
  char str2[40];
  char str3[40];
  strcpy (str2,str1);//str1 copies to str2
  strcpy (str3,"copy successful");
  printf ("str1: %s\nstr2: %s\nstr3: %s\n",str1,str2,str3);
  return 0;
}

Example 3: strcmp c++

#include<stdio.h> 
#include<string.h> 


int main() 
{  
      
    char char1[] = "coucou"; 
    char char2[] = "coucou"; 
      
  	if( strcmp(char1, char2) == 0 )
       printf("Strings are the same");
  
  	else
      prinf("Strings are differentes");
  
  
    return 0; 
}