|
TABLES ABOUT VISUAL BASIC
|
Visual
Basic type |
Common
language runtime type structure |
Nominal
storage allocation |
Value
range |
|
Boolean |
Boolean |
Depends
on implementing platform |
True or False |
|
Byte |
Byte |
1
byte |
0
through 255 (unsigned) |
|
Char (single character) |
Char |
2
bytes |
0
through 65535 (unsigned) |
|
Date |
DateTime |
8
bytes |
0:00:00 (midnight) on January 1, 0001 through 11:59:59
PM on December 31, 9999 |
|
Decimal |
Decimal |
16
bytes |
0
through +/-79,228,162,514,264,337,593,543,950,335 (+/-7.9...E+28) † with no decimal point; 0 through +/-7.9228162514264337593543950335
with 28 places to the right of the decimal;
smallest
nonzero number is +/-0.0000000000000000000000000001 (+/-1E-28) † |
|
Double (double-precision floating-point) |
Double |
8
bytes |
-1.79769313486231570E+308
through -4.94065645841246544E-324 † for negative values;
4.94065645841246544E-324
through 1.79769313486231570E+308 † for positive values |
|
Integer |
Int32 |
4
bytes |
-2,147,483,648
through 2,147,483,647 (signed) |
|
Long (long integer) |
Int64 |
8
bytes |
-9,223,372,036,854,775,808
through 9,223,372,036,854,775,807 (9.2...E+18 †) (signed) |
|
Object |
Object (class) |
4
bytes on 32-bit platform
8
bytes on 64-bit platform |
Any
type can be stored in a variable of type Object |
|
SByte |
SByte |
1
byte |
-128
through 127 (signed) |
|
Short (short integer) |
Int16 |
2
bytes |
-32,768
through 32,767 (signed) |
|
Single (single-precision floating-point) |
Single |
4
bytes |
-3.4028235E+38
through -1.401298E-45 † for negative values;
1.401298E-45
through 3.4028235E+38 † for positive values |
|
String (variable-length) |
String (class) |
Depends
on implementing platform |
0
to approximately 2 billion Unicode characters |
|
UInteger |
UInt32 |
4
bytes |
0
through 4,294,967,295 (unsigned) |
|
ULong |
UInt64 |
8
bytes |
0
through 18,446,744,073,709,551,615 (1.8...E+19 †) (unsigned) |
|
User-Defined (structure) |
(inherits
from ValueType) |
Depends
on implementing platform |
Each
member of the structure has a range determined by its data type and independent of the ranges of the other members |
|
UShort |
UInt16 |
2
bytes |
0
through 65,535 (unsigned) |
|
