Why puts is not working in the following code?

Question

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

struct test
{
    int id;
    char name[20];
};

int main()
{

struct test t1;

   t1.id=1;
   fflush(stdin);
   fgets(t1.name,20,stdin);

   print((&t1.name));          
   print1(t1.id,&(t1.name));    

}
void print(struct test *name)
{
    puts(name);
}

void print1(struct test id,struct test *name)
{

    printf("\n%d\n",id);


    puts(name);
}

When I run this program it asks for input

test[enter]

output comes out

test 1 (then program terminates)

Why the first puts worked and why puts in second function did not? Yes, there is an option to send complete structure, but I want to know what's wrong here.

Answer 1

Your program does not work for several reasons:

• You are calling functions that lack forward declarations - you should see warnings when your program compiles. Do not ignore them
• Your functions are taking arguments of incorrect type - you should receive the type corresponding to individual fields, e.g. void print1(int id, char *name) or you should pass the whole structure, by value or by pointer, i.e. void print1(struct test t)

Once you fix these two problems, and make sure that your program compiles warning-free, with all compiler warnings enabled, the issue should be solved.