Language%20in%20C%20Interview%20Questions%20and%20Answers

Question: What's the difference between these two declarations?

struct str1 { ... } ;
typedef struct { ... } str2 ;

Answer: The first form declares a structure tag whereas the second declares a typedef. The main difference is that the second declaration is of a slightly more abstract type -- its users don't necessarily know that it is a structure, and the keyword struct is not used when declaring instances of it.

Is it helpful? Yes No

Most helpful rated by users:

What will be the output of the following code?

void main ()
{ int i = 0 , a[3] ;
a[i] = i++;
printf ("%d",a[i]) ;
}
Why doesn't the following code give the desired result?

int x = 3000, y = 2000 ;
long int z = x * y ;
Why doesn't the following statement work?

char str[ ] = "Hello" ;
strcat ( str, '!' ) ;
How do I know how many elements an array can hold?
How do I compare character data stored at two different memory locations?

Language%20in%20C%20Interview%20Questions%20and%20Answers

Question: What's the difference between these two declarations?struct str1 { ... } ;typedef struct { ... } str2 ;

Question: What's the difference between these two declarations?

struct str1 { ... } ;
typedef struct { ... } str2 ;