C++变量长度

 

	windows Vc6 (32bit)	Windows Vc2005 (32bit)	Redhat linux Gcc 3.2.3 32bit	Redhat linux Gcc 3.4.6 64bit
Char	1	1	1	1
Unsigned char	1	1	1	1
Char c[12]	12	12	12	12
Const char*	4	4	4	8
Short	2	2	2	2
Unsigned short	2	2	2	2
Int	4	4	4	4
Unsigned int	4	4	4	4
Long	4	4	4	8
Unsigned Long	4	4	4	8
String	16	32	4	8
Vector<string>	16	20	12	24
Vector<int>	16	20	12	24
Vector<short>	16	20	12	24
List<string>	12	24	4	16
List<int>	12	24	4	16
Map<string,int>	16	28	12	48
Map<int,int>	16	28	12	48
Map<short,string>	16	28	12	48

 

WINDOWS

VC6 32位

char: 1
unsigned char: 1
char c[12]: 12
const char*: 4
short: 2
unsigned short: 2
int: 4
unsigned int: 4
long: 4
unsigned long: 4
string: 16
vector<string>: 16
vector<int>: 16
vector<short>: 16
list<string>: 12
list<int>: 12
list<short>: 12
map<string,int>: 16
map<int,int>: 16
map<short,string>: 16

 

WINDOWS

VC2005 32位

char: 1
unsigned char: 1
char c[12]: 12
const char*: 4
short: 2
unsigned short: 2
int: 4
unsigned int: 4
long: 4
unsigned long: 4
string: 32
vector<string>: 20
vector<int>: 20
vector<short>: 20
list<string>: 24
list<int>: 24
list<short>: 24
map<string,int>: 28
map<int,int>: 28
map<short,string>: 28

 

 

linux 32位 redhat

gcc:3.2.3 20030502 (Red Hat Linux 3.2.3-47)

char: 1
unsigned char: 1
char c[12]: 12
const char*: 4
short: 2
unsigned short: 2
int: 4
unsigned int: 4
long: 4
unsigned long: 4
string: 4
vector<string>: 12
vector<int>: 12
vector<short>: 12
list<string>: 4
list<int>: 4
list<short>: 4
map<string,int>: 12
map<int,int>: 12
map<short,string>: 12

 

linux 64位 redhat

gcc version 3.4.6 20060404 (Red Hat 3.4.6-10)

char: 1
unsigned char: 1
char c[12]: 12
const char*: 8
short: 2
unsigned short: 2
int: 4
unsigned int: 4
long: 8
unsigned long: 8
string: 8
vector<string>: 24
vector<int>: 24
vector<short>: 24
list<string>: 16
list<int>: 16
list<short>: 16
map<string,int>: 48
map<int,int>: 48
map<short,string>: 48