Answer:
Following are the code in the C programming Language.
//define function
void duplicate(char*argv, char**result) {
//set and initialize the variable to 0
int c = 0;
//set and initialize the char type pointer variable
char** t = argv;
//set the while loop
while(t){
//increment by 1
c++;
//increment by 1
t++;
}
//set malloc function in the pointer variable
result= malloc(sizeof(char)*(c+1));
//set the for loop
for(int i = 0; i < c; i++) {
//set malloc function in the pointer
(*result)[i] = malloc(strlen(argv[i])+1);
//copy the character from memory
memcpy(argv[i], (*result)[i], strlen(argv[i])+1)
;
}
//initialize null in the pointer
(*result)[i] = NULL;
}
Explanation:
In the following code, we define function "duplicate()" and pass two character type pointer arguments "*argv" and "**result" and inside the function.
- Set an integer type variable "c" and initialize to 0.
- Set character type pointer variable "t" and initialize the value of pointer variable "argv".
- Set the while loop and increment in the variable "c" and "t" by 1.
- Set the malloc function in the pointer variable "result".
- Set the for loop to copy the character from the memory.
- Finally, initialize the pointer variable "result" to NULL.
The difference between raw_input and input is
when you're using raw input, it returns a string and input and tries to run the input as phyton expression
hope this helps
