The function name determines the data type of the value it returns, as shown in the following table.
Function name Return data type Range for expression argument
1)CBool
Boolean Data Type
Any valid Char or String or numeric expression.
2)CByte
Byte Data Type
0 through 255 (unsigned); fractional parts are rounded.
3)CChar
Char Data Type
Any valid Char or String expression; only first character of a String is converted; value can be 0 through 65535 (unsigned).
4)CDate
Date Data Type
Any valid representation of a date and time.
5)CDbl
Double Data Type
-1.79769313486231570E+308 through -4.94065645841246544E-324 for negative values; 4.94065645841246544E-324 through 1.79769313486231570E+308 for positive values.
6)CDec
Decimal Data Type
+/-79,228,162,514,264,337,593,543,950,335 for zero-scaled numbers, that is, numbers with no decimal places. For numbers with 28 decimal places, the range is +/-7.9228162514264337593543950335. The smallest possible non-zero number is 0.0000000000000000000000000001 (+/-1E-28).
7)CInt
Integer Data Type
-2,147,483,648 through 2,147,483,647; fractional parts are rounded.
8)CLng
Long Data Type
-9,223,372,036,854,775,808 through 9,223,372,036,854,775,807; fractional parts are rounded.
9)CObj
Object Data Type
Any valid expression.
10)CSByte
SByte Data Type
-128 through 127; fractional parts are rounded.
11)CShort
Short Data Type (Visual Basic)
-32,768 through 32,767; fractional parts are rounded.
12)CSng
Single Data Type
-3.402823E+38 through -1.401298E-45 for negative values; 1.401298E-45 through 3.402823E+38 for positive values.
13)CStr
String Data Type
Returns for CStr depend on the expression argument. See Return Values for the CStr Function.
14)CUInt
UInteger Data Type
0 through 4,294,967,295 (unsigned); fractional parts are rounded.
15)CULng
ULong Data Type
0 through 18,446,744,073,709,551,615 (unsigned); fractional parts are rounded.
16)CUShort
UShort Data Type
0 through 65,535 (unsigned); fractional parts are rounded.
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