Data Types - Revision history

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Variables (Notes in parenthesis) VarType SizeOf (possible formula) Can set as variant? Variant impli..."
2012-08-23T20:58:12Z

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<table>
<tr>
<th>Variables (Notes in parenthesis)</th>
<th>VarType</th>
<th>SizeOf (possible formula)</th>
<th>Can set as variant?</th>
<th>Variant implicit string</th>
<th>Variant implicit integer</th>
<th>Variant implicit float</th>
<th>Range (if applicable)</th>
</tr>
<tr>
<td>variant (unassigned)</td>
<td>0</td>
<td>16</td>
<td>yes</td>
<td></td>
<td>0</td>
<td>incomplete</td>
<td>Check table category "Can set as variant?"</td>
</tr>
<tr>
<td>variant <null></td>
<td>1</td>
<td>16</td>
<td>yes</td>
<td>exception</td>
<td>exception</td>
<td>incomplete</td>
<td></td>
</tr>
<tr>
<td>smallint (sint16)</td>
<td>2</td>
<td>2</td>
<td>yes</td>
<td>0</td>
<td>incomplete</td>
<td>incomplete</td>
<td>-32768 to 32767</td>
</tr>
<tr>
<td>integer, longint (sint32)</td>
<td>3</td>
<td>4</td>
<td>yes</td>
<td>0</td>
<td>incomplete</td>
<td>incomplete</td>
<td>-2147483648 to 2147483647</td>
</tr>
<tr>
<td>single (fp32)</td>
<td>5</td>
<td>4</td>
<td>yes</td>
<td>0</td>
<td>0</td>
<td>incomplete</td>
<td>(7 significant digits), INF, -INF</td>
</tr>
<tr>
<td>double (fp64)</td>
<td>5</td>
<td>8</td>
<td>yes</td>
<td>0</td>
<td>0</td>
<td>incomplete</td>
<td>(15 significant digits), INF, -INF</td>
</tr>
<tr>
<td>extended (fp80)</td>
<td>5</td>
<td>10</td>
<td>yes</td>
<td>0</td>
<td>incomplete</td>
<td>incomplete</td>
<td>1E-38 to 1E+38 (19 significant digits), INF, -INF</td>
</tr>
<tr>
<td>WideChar</td>
<td>8</td>
<td>2</td>
<td>yes</td>
<td></td>
<td>exception</td>
<td>incomplete</td>
<td></td>
</tr>
<tr>
<td>WideString</td>
<td>8</td>
<td>4</td>
<td>yes</td>
<td></td>
<td>incomplete</td>
<td>incomplete</td>
<td></td>
</tr>
<tr>
<td>IDispatch</td>
<td>9</td>
<td>4</td>
<td>yes</td>
<td>exception</td>
<td>exception</td>
<td>incomplete</td>
<td></td>
</tr>
<tr>
<td>boolean</td>
<td>11</td>
<td>1</td>
<td>yes</td>
<td>False</td>
<td>0</td>
<td>incomplete</td>
<td>true, false</td>
</tr>
<tr>
<td>shortint (sint8)</td>
<td>16</td>
<td>1</td>
<td>yes</td>
<td>0</td>
<td>incomplete</td>
<td>incomplete</td>
<td>-128 to 127</td>
</tr>
<tr>
<td>byte (uint8)</td>
<td>17</td>
<td>1</td>
<td>yes</td>
<td>0</td>
<td>incomplete</td>
<td>incomplete</td>
<td>0 to 255</td>
</tr>
<tr>
<td>enum</td>
<td>17</td>
<td>1</td>
<td>yes</td>
<td>0</td>
<td>0</td>
<td>incomplete</td>
<td>min >= 1; max <= unknown (at least 65536 compiles)</td>
</tr>
<tr>
<td>TIFException</td>
<td>17</td>
<td>1</td>
<td>yes</td>
<td>0</td>
<td>0</td>
<td>incomplete</td>
<td>Cannot set as an integer</td>
</tr>
<tr>
<td>word, TVarType (uint16)</td>
<td>18</td>
<td>2</td>
<td>yes</td>
<td>0</td>
<td>0</td>
<td>incomplete</td>
<td>0 to 65535</td>
</tr>
<tr>
<td>cardinal, longword (uint32)</td>
<td>19</td>
<td>4</td>
<td>yes</td>
<td>0</td>
<td>incomplete</td>
<td>incomplete</td>
<td>0 to 4294967295</td>
</tr>
<tr>
<td>LongBool</td>
<td>19</td>
<td>4</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>Int64 (sint64)</td>
<td>20</td>
<td>8</td>
<td>yes</td>
<td>0</td>
<td>incomplete</td>
<td>incomplete</td>
<td></td>
</tr>
<tr>
<td>char</td>
<td>256</td>
<td>1</td>
<td>yes</td>
<td><#000></td>
<td>exception</td>
<td>incomplete</td>
<td>ASCII character set</td>
</tr>
<tr>
<td>string</td>
<td>256</td>
<td>4</td>
<td>yes</td>
<td></td>
<td>incomplete</td>
<td>incomplete</td>
<td>length from 0 to 1541210095</td>
</tr>
<tr>
<td>array of <type></td>
<td>8204</td>
<td>4</td>
<td>yes</td>
<td>exception</td>
<td>exception</td>
<td>incomplete</td>
<td>length from -7 to 1074241824 (2^30)</td>
</tr>
<tr>
<td>array[min..max] of <type></td>
<td>exception</td>
<td>varies; (max-min)*sizeof(type)</td>
<td>no</td>
<td>exception</td>
<td>exception</td>
<td>exception</td>
<td>max-min <= 536870910 (2^29-2)</td>
</tr>
<tr>
<td>set of <byte/char></td>
<td>exception</td>
<td>32</td>
<td>no</td>
<td>exception</td>
<td>exception</td>
<td>exception</td>
<td></td>
</tr>
<tr>
<td>set of <boolean/enum></td>
<td>exception</td>
<td>1</td>
<td>no</td>
<td>exception</td>
<td>exception</td>
<td>exception</td>
<td></td>
</tr>
<tr>
<td>record</td>
<td>exception</td>
<td>varies; sum of sizeof all content</td>
<td>no</td>
<td>exception</td>
<td>exception</td>
<td>exception</td>
<td></td>
</tr>
<tr>
<td>IUnknown</td>
<td>exception</td>
<td>4</td>
<td>no</td>
<td>exception</td>
<td>exception</td>
<td>exception</td>
<td></td>
</tr>
<tr>
<td>___Pointer</td>
<td>exception</td>
<td>exception</td>
<td>no</td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
<tr>
<td>function: <type>, procedure</td>
<td>exception</td>
<td>12</td>
<td>no</td>
<td>exception</td>
<td>exception</td>
<td>exception</td>
<td></td>
</tr>
<tr>
<td>PChar</td>
<td>access violation</td>
<td>4</td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</table>

Refer to [[Implicit Conversions|http://devs.soldat.pl/wiki/index.php?title=Implicit_Conversions]] for a list of types that can implicitly convert to another.

TStringArray
TVariantArray