.


:




:

































 

 

 

 





, , , . , , :

, , , .. ;

, .. ;

, .

 

, , .

:

union ID_ {

};

:

union word {

int nom;

char str[20];

};

:

union word *p_w, mas_w[100];

, .

. union, .

union:

...

typedef union q {

int a;

double b;

char s[5];

} W;

void main(void)

{

W s, *p = &s;

s.a = 4;

printf(\n Integer a = %d, Sizeof(s.a) = %d, s.a, sizeof(s.a));

p > b = 1.5;

printf(\n Double b = %lf, Sizeof(s.b) = %d, s.b, sizeof(s.b));

strcpy(p>s, Minsk);

printf(\n String a = %s, Sizeof(s.s) = %d, s.s, sizeof(s.s));

printf(\n Sizeof(s) = %d, sizeof(s));

}

:

Integer a = 4, Sizeof(s. a) = 2

Double b = 1.500000, Sizeof(s.b) = 4

String a = Minsk, Sizeof(s.s) = 5

Sizeof(s) = 5

 

 

.

enum ID__ {

_

};

, :

enum marks {

zero, one, two, three, four, five

};

0, 1, 2,.... , . :

enum level {

low=100, medium=500, high=1000, limit

};

limit , 1001.

:

enum marks Est;

enum level state;

marks {zero, one, two, three, four, five}.

:

;

.

.

:

...

typedef enum {

mo=1, tu, we, th, fr, sa, su

} days;

void main(void)

{

days w_day; //

int t_day, end, start;

// ,

puts( ( 1 7): );

scanf(%d, &t_day);

w_day = su;

start = mo;

end = w_day t_day;

printf(\n %d , \

%d \n\

%d . , start, t_day, end);

}

:

( 1 7): 5

1 , 5-

2 .

 

. , , / . 1 , . ( ), int:

struct fields {

unsigned int flag: 1;

unsigned int mask: 10;

unsigned int code: 5;

};

. , . . , , . , , , . . int, int. , 0 int:

struct areas {

unsigned f1: 1;

: 2; 2 ;

unsigned f2: 5;

: 0 int;

unsigned f3:5;

double data;

char buffs[100];

;

};

. (&). , - .

 

 





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