After completing Exercise 8.1.1, test it by experimenting with different limitat

Question

After completing Exercise 8.1.1, test it by experimenting with different
limitations for the str string. It helps if you replace the number 600 with the sym-
bolic constant STRMAX, putting the following #define directive at the beginning
of the program. During preprocessing, this directive causes the compiler to replace
occurrences of STRMAX in the source code with the indicated text (600).
#define STRMAX 600
You can then use STRMAX to declare the length of str
char str[STRMAX];
and then use STRMAX to determine how many bytes to copy:
strncpy(str, " My name is ", STRMAX);
strncat(str, name, STRMAX - strlen(str));
The beauty of this approach is that if you need to change the maximum string
size, you need to change only one line of code (the line containing the #define
directive) and then recompile.
c++

Explanation / Answer

Below is your program. Please comment if you have any issues

#include <iostream>
#include <cstring>
#include <cstdlib>
using namespace std;
#define STRMAX 600 // The macro STRMAX is defined to 600

int main() {

char str[STRMAX];
char name[STRMAX];
char address[STRMAX];
char work[STRMAX];

cout << "Enter name and press ENTER: ";
cin.getline(name, STRMAX);
cout << "Enter address and press ENTER: ";
cin.getline(address, STRMAX);
cout << "Enter workplace and press ENTER: ";
cin.getline(work, STRMAX);
strncpy(str, " My name is ",STRMAX);
strcat(str, name);
strncat(str, ", I live at ",STRMAX);
strncat(str, address, STRMAX - strlen(str));
strncat(str, ", and I work at ",STRMAX);
strcat(str, work);
strcat(str, ",");

cout << str << endl;
return 0;
}

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