Data Type Size << Back

Here are most of the base data types and sizes in VDF/DF. I was a bit surprised to find out that the size of Boolean is 1 because in C++, BOOL is basically an integer (which is 4 bytes). Which means you have to be super careful when declaring C++ structs in VDF because Boolean in VDF is not the same size as BOOL in C++.

Some data types have 2 numbers in the comment because they are different in size between 32 bit and 64 bit DF.

Use UI
#COMMAND S
	Showln "!1 " (SizeOfType(!1))
#ENDCOMMAND
s Address		// 4	8
s BigInt		// 8 
s Boolean		// 1 
s Char			// 1 
s Currency		// 8 
s DWord 		// 4 
s Date			// 12
s DateTime		// 16
s Decimal		// 17
s Float 		// 4 
s Handle		// 4	8 
s Integer		// 4 
s Number		// 12
s Pointer		// 4	8
s Real			// 8 
s RowId 		// 8 	16
s Short 		// 2 
s String		// 4 	8
s Time			// 6 
s TimeSpan		// 16
s UBigInt		// 8 
s UChar 		// 1 
s UInteger		// 4 
s UShort		// 2 
s Variant		// 16	24
s WString		// 4	8
InKey FieldIndex