Question

How to get the size of structs in C

Answer 1

#include <stdio.h> 
 
struct Test { 
    float book_price; 
    int book_tax; 
    char first_letter; 
    char store_name[10]; 
}; 
   
int main() 
{ 
    printf("%i bytes", sizeof(struct Test)); 
     
    return 0; 
} 
 


 
/*
run:
 
20 bytes
 
*/

 

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Answer 2

#include <stdio.h> 
 
struct Test { 
    int n; 
    char arr[26];
    float f; 
}; 
   
int main() 
{ 
    printf("%i bytes", sizeof(struct Test)); 
     
    return 0; 
} 
 


 
/*
run:
 
36 bytes
 
*/

 

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