I have this program in C that takes three char arrays that e

I have this program in C that takes three char arrays that each have a first and last name. I have two functions that reverese the name and change it to all upper case. I have the program completeed but need to change both functions to use pointers instead of arrays. I will bold the functions I need to use pointers.

#include <stdio.h>

void upper_string(char []);

int main()
{
char name1[100]=\"John Smith\";
char name2[100]=\"Mary Cohen\";
char name3[100]=\"Carl Williams\";
upper_string(name1);// calling upper case function
upper_string(name2);
upper_string(name3);
printf(\"Names are in upper case \ \\\"%s\\\"\ \"\"%s\\\"\ \"\"%s\\\"\ \", name1,name2,name3);
reverse(name1);// calling reverse string function
reverse(name2);
reverse(name3);

getch();
}

void upper_string(char s[]) {
int c = 0;

while (s[c] != \'\\0\') {
if (s[c] >= \'a\' && s[c] <= \'z\') {
s[c] = s[c] - 32;
}
c++;
}
}
// function to reverse the string
void reverse(char string[]){

char temp;
int i, j = 0;
i = 0;
j = strlen(string) - 1;

while (i < j) {
temp = string[i];
string[i] = string[j];
string[j] = temp;
i++;
j--;
}

printf(\"\ Reverse string is :%s\", string);
}

Hi,

I have modified the code and highlighted the code changes below.

#include <stdio.h>
#include <string.h>
void upper_string(char *);
void reverse(char *string);
int main()
{
char name1[100]=\"John Smith\";
char name2[100]=\"Mary Cohen\";
char name3[100]=\"Carl Williams\";
upper_string(name1);// calling upper case function
upper_string(name2);
upper_string(name3);
printf(\"Names are in upper case \ \\\"%s\\\"\ \"\"%s\\\"\ \"\"%s\\\"\ \", name1,name2,name3);
reverse(name1);// calling reverse string function
reverse(name2);
reverse(name3);

}
void upper_string(char *s) {
int c = 0;
while (*(s + c) != \'\\0\') {
if (*(s + c) >= \'a\' && *(s + c) <= \'z\') {
*(s + c) = *(s + c) - 32;
}
c++;
}
}
// function to reverse the string
void reverse(char *string){
char temp;
int i, j = 0;
i = 0;
j = strlen(string) - 1;
while (i < j) {
temp = *(string + i);
*(string + i) = *(string + j);
*(string + j) = temp;
i++;
j--;
}
printf(\"Reverse string is :%s\ \", string);
}