| Description |
The Int64 type is a 64 bit signed Integer. This size is fixed, and will not change in future releases of Delphi.
Functions such as IntToStr support Int64 (via overloading).
Integer constants are cast to Int64 type when they exceed Integer size.
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| Notes |
There is no unsigned 64 bit integer type in Delphi.
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| Related commands |
| Byte |
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An integer type supporting values 0 to 255 |
| Cardinal |
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The basic unsigned integer type |
| Integer |
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The basic Integer type |
| LongInt |
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An Integer whose size is guaranteed to be 32 bits |
| LongWord |
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A 32 bit unsigned integer |
| PInt64 |
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Pointer to an Int64 value |
| ShortInt |
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An integer type supporting values -128 to 127 |
| SmallInt |
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An Integer type supporting values from -32768 to 32767 |
| Word |
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An integer type supporting values 0 to 65535 |
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| Example code : Showing the capacity of Int64 |
var
min, max : Int64;
begin
// Set the minimum and maximum values of this data type
min := Low(Int64);
max := High(Int64);
WriteLn('Min int64 value = '+IntToStr(min));
WriteLn('Max int64 value = '+IntToStr(max));
end;
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| Show full unit code |
Min int64 value = -9223372036854775808
Max int64 value = 9223372036854775807
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