[smithmay]

The program as follows can run good under C++ envirement.Under C,the output is:"scanf:floating point formats not linked. Abnormal program termination."
I don't know where the mistake is.
#include<stdio.h>
typedef struct student
{float score;
}student;
main()
{student *a;
a=(student*)malloc(sizeof(student));
scanf("%f",&a->score);
printf("The score is:%f\n",a->score);
}
But after I have changed some of this program,it works.The other one goes here:
#include<stdio.h>
typedef struct student
{float score;
}student;
main()
{student b;
scanf("%f",&b.score);
printf("The score is:%f\n",b.score);
}
It works without any problems.Why?What's the differece between them?

[simple]

touche buddy!! i dont know if this is a coincidence or what! but i have a C program in which it gave me the same error and when i accepted the value in a different variable and then stored it in the structure using pointer it worked.. i dont know why this happened. Also if you take the datatype of score as integer and keep everything same then also it works perfectly!! so guys if u reply for it with a solution it will be for the two of us!! thanks !! c ya!!

[smithmay]

Maybe it is a bug of Turbo C 2.0.But I really wish some professional programmer can give us the answer!Even my teachers can not explain it exactly!

[furtivefelon]

first of all, use [code ] tag to circle your code to perserve formatting..

otherwise, can't see anything wrong, i used gcc to run it, with the exception of one warning as listed below, runs perfectly..

test.c:9: warning: incompatible implicit declaration of built-in function 'malloc'

here is the code i used:

#include <stdio.h>
typedef struct student
{
	float score;
}student;
int main(void)
{
	student *a;
	a=(student*)malloc(sizeof(student));
	scanf("%f",&a->score);
	printf("The score is:%f\n",a->score);
	
	student b;
	scanf("%f",&b.score);
	printf("The score is:%f\n",b.score);
	return(0);
}