Thread: structure in c example

I tried to write program after some reading about structure but I am stuck. how to make proficient program for structure

Code:

#include<stdio.h>

int maain (void)
 { 
    // Does we declear structure like this ? //
    
    struct account 
     {
       int profile_number;
       int mobile_number;
       char first_letter_name;
       char last_letter_name;      
     };
 
    // How to inilizelize structure ? //
    
    struct account profile ;

       profile.profile_number = 123;
       profile.mobile_number = 456123;
       profile.first_letter_name = 'A';
       profile.last_letter_name = 's';
       
       printf (" \n Print profile number %d ", profile.profile_number); 
       printf (" \n Print mobile_number %d ", profile.mobile_number); 
       printf (" \n Print first letter of name %c ",profile.first_letter_name); 
       printf (" \n Print profile number %c ",profile.last_letter_name); 
    
    return 0;
 }

What's wrong in program ?

It actually looks pretty good, but you have no main function
maaaaaain typo.

I refactored your code, here is the result:

Code:

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

struct account 
    {
        int profile_number;
        int mobile_number;
        char first_letter_name;
        char last_letter_name;      
    };

int main (void)
 { 
    struct account profile=
    {
        .profile_number = 123,
        .mobile_number = 456123,
        .first_letter_name = 'A',
        .last_letter_name = 's'
        
    };
    
    printf (" \n Print profile nmber %d ", profile.profile_number); 
    printf (" \n Print mobile_number %d ", profile.mobile_number); 
    printf (" \n Print first letter of name %c ",profile.first_letter_name); 
    printf (" \n Print profile nmber %c ",profile.last_letter_name); 
    
    return EXIT_SUCCESS;
 }

Thanks @WoodSTokk , @ordak

what is difference between structure and typedef. How to decide what to use structure or typedef ?

Code:

#include<stdio.h>
 
int main (void)
 { 
 
    typedef struct account_s 
    {
       int profile_number;
       int mobile_number;
       char first_letter_name;
       char last_letter_name;
    } account; 
  
 
     
    struct account_s profile ;
 
       profile.profile_number = 123;
       profile.mobile_number = 456123;
       profile.first_letter_name = 'A';
       profile.last_letter_name = 's';
        
       printf (" \n Print profile nmber %d ", profile.profile_number); 
       printf (" \n Print mobile_number %d ", profile.mobile_number); 
       printf (" \n Print first letter of name %c ",profile.first_letter_name); 
       printf (" \n Print profile nmber %c ",profile.last_letter_name); 
     
    return 0;
 }

Result

Print profile nmber 123
Print mobile_number 456123
Print first letter of name A
Print profile nmber s

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