1.2.2.
,
,
(. 6).
6
+---------------+----------------------+---------------------+
| | | |
| | | |
|---------------|----------------------|---------------------|
| char | 1 | -128 127 |
|---------------|----------------------|---------------------|
| int | IBM XT,AT,SX,DX 2 | |
|---------------|----------------------|---------------------|
| short | 2 | -32768 32767 |
|---------------|----------------------|---------------------|
| long | 4 | -2 147 483 648 |
| | | 2 147 483 647 |
|---------------|----------------------|---------------------|
| unsigned shar | 1 | o 0 255 |
|---------------|----------------------|---------------------|
| unsigned int | IBM XT,AT,SX,DX 2 | |
|---------------|----------------------|---------------------|
| unsigned | 2 | 0 65535 |
| short | | |
|---------------|----------------------|---------------------|
| unsigned long | 4 | 0 |
| | | 4 294 967 295 |
+---------------+----------------------+---------------------+
, signed unsigned . ,
, ..,
unsigned, ,
.
unsigned . ,
signed unsigned
,
int. :
unsigned int n;
unsigned int b;
int c; ( signed int c );
unsigned d; ( unsigned int d );
signed f; ( signed int f ).
, - char
( ) .
char ( 1 ),
. ,
unsigned char,
127.
:
- int
unsigned int. signed int
,
. , 16- 2- , 32-
4- , .. int
short int, long int .
,
.
sizeof ,
-.
:
a = sizeof(int);
b = sizeof(long int);
c = sizeof(unsigned long);
d = sizeof(short);
,
unsigned. u U
, .
:
0xA8C (int signed );
01786l (long signed );
0xF7u (int unsigned );
|
|
