Why is fflush needed here?
OK, this is a part of a program that I wrote:
Code:
#include <stdio.h>
#include <string.h>
struct info {
char firstname[20+1];
char lastname[25+1];
float score;
};
int main() {
struct info student;
do {
printf("Type in the name: ");
gets(student.firstname);
if (strlen(student.firstname)==0) break;
printf("Type in the last name: ");
gets(student.lastname);
printf("Type in the score: ");
scanf("%f", &student.score);
//fflush(stdin);
} while (1);
return 0;
}
It didn't work this way (it allows me to enter data only once), so I put fflush(stdin) for no particular reason and now it works. Why is that?
