Что бы узнать количество байт можно воспользоватся командой cout<<sizeof(оператор); или посмотреть в таблицу:
| Имя | Байт | Варианты имени | Размер |
|---|---|---|---|
int
|
4
|
signed
|
–2,147,483,648 to 2,147,483,647
|
unsigned int
|
4
|
unsigned
|
0 to 4,294,967,295
|
__int8
|
1
|
char
|
–128 to 127
|
unsigned __int8
|
1
|
unsigned char
|
0 to 255
|
__int16
|
2
|
short, short int, signed short int
|
–32,768 to 32,767
|
unsigned __int16
|
2
|
unsigned short, unsigned short int
|
0 to 65,535
|
__int32
|
4
|
signed, signed int, int
|
–2,147,483,648 to 2,147,483,647
|
unsigned __int32
|
4
|
unsigned, unsigned int
|
0 to 4,294,967,295
|
__int64
|
8
|
long long, signed long long
|
–9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
|
unsigned __int64
|
8
|
unsigned long long
|
0 to 18,446,744,073,709,551,615
|
bool
|
1
|
none
|
false or true
|
char
|
1
|
none
|
–128 to 127 by default
0 to 255 when compiled with /J
|
signed char
|
1
|
none
|
–128 to 127
|
unsigned char
|
1
|
none
|
0 to 255
|
short
|
2
|
short int, signed short int
|
–32,768 to 32,767
|
unsigned short
|
2
|
unsigned short int
|
0 to 65,535
|
long
|
4
|
long int, signed long int
|
–2,147,483,648 to 2,147,483,647
|
unsigned long
|
4
|
unsigned long int
|
0 to 4,294,967,295
|
long long
|
8
|
none (but equivalent to __int64)
|
–9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
|
unsigned long long
|
8
|
none (but equivalent to unsigned __int64)
|
0 to 18,446,744,073,709,551,615
|
enum
|
varies
|
none
|
See Remarks.
|
float
|
4
|
none
|
3.4E +/- 38 (7 digits)
|
double
|
8
|
none
|
1.7E +/- 308 (15 digits)
|
long double
|
same as double
|
none
|
same as double
|
wchar_t
|
2
|
__wchar_t
|
0 to 65,535
|
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