Issue with converting string to char

ISO C++ forbids converting a string constant to ‘char*’ 

printz_students.cpp:21:103: warning: ISO C++ forbids converting a string constant to ‘char*’ [-Wwrite-strings]
   21 | { char *major[] = { "Electrical Engineering", "Computer Engineering", "Computer Science Engineering", "Biomedical Engineering" }; //To Print Major As a String

‘struct student’ has no member named ‘print’
   63 |   students[i].print();

error: ‘string’ does not name a type; did you mean ‘stdin’?
  18 |

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

	typedef enum
	{
		EE, CMPE, CSE, BME
	}

major_type;
using namespace std;
class student
{	public:
	char *name;
	major_type major;
	
	private:
    string name;
};
void print_student(struct student *sp)
{	char *major[] = { "Electrical Engineering", "Computer Engineering", "Computer Science Engineering", "Biomedical Engineering" };	//To Print Major As a String
	printf("%s- %s\n-", sp->name, major[sp->major]);
	printf("\n");
}

int main(int argc, char **argv)
{
	if (argc != 2)
	{
		printf("%s filename\n", argv[0]);
		exit(0);
	}

	FILE *fp = fopen(argv[1], "r");
	if (fp == NULL)
	{
		perror("Could not open file");
		exit(0);
	}

	int num_students = 0;
	char str[11];
	int major;
	student *students = (student*) calloc(10, sizeof(student));
	while (fscanf(fp, "%10s %d\n", str, &major) != EOF)
	{
		student *sp = &students[num_students];
		sp->name = str;
		if (major == 0) sp->major = EE;
		else if (major == 1) sp->major = CMPE;
		else if (major == 2) sp->major = CSE;
		else if (major == 3) sp->major = BME;
		num_students++;
		if ((num_students % 10) == 0)
		{
			students = (student*)
			realloc(students, (num_students + 10) *sizeof(student));
		}
	}

	for (int i = 0; i < num_students; i++)
	{
		students[i].print();
	}
}