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| − | {{Int64}}
| + | #REDIRECT [[Integer]] |
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| − | '''int64''' is an integer type that is represented with 64bit. It's range of values: -9,223,372,036,854,775,808 .. 9,223,372,036,854,775,807 (that is
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| − | <math>\left\{n \in \mathbb{Z} \: \mid -\left(2^{63}\right) \leq n < 2^{63}\right\}</math>)
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| − | Memory requirement: 8 bytes that is 64 bits.
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| − | A data field of the Int64 data type can only take integer values with and without sign.
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| − | Assigning other values leads to compiler error messages when the program is compiled and the compilation process is aborted. That is, the executable program is not created.
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| − | Definition of a data field of type Int64:
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| − | <syntaxhighlight lang=pascal>
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| − | var
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| − | i64 : Int64;
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| − | </syntaxhighlight>
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| − | Examples of assigning valid values:
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| − | <syntaxhighlight lang=pascal>
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| − | i64 := - 9223372036854775808;
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| − | i64 := 0;
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| − | i64 := 9223372036854775807;
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| − | </syntaxhighlight>
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| − | Examples of assigning invalid values:
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| − | <syntaxhighlight lang=pascal>
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| − | i64 := '-9223372036854775808';
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| − | i64 := '0';
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| − | i64 := '9223372036854775807';
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| − | </syntaxhighlight>
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| − | The difference between the two examples is that the upper example is the assignment of literals of the type [[Integer]], while the assignment of the lower example is literals of the type [[String]].
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| − | Example of converting from raw data to Int64:
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| − | <syntaxhighlight lang=pascal>
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| − | ...
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| − | type
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| − | ...
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| − | ByteArray8 = array [0..7] of byte;
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| − | ...
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| − | function RawToInt64(aByteArray8: ByteArray8; IntelEndiannes: boolean=false): Int64;
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| − | begin
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| − | if IntelEndiannes
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| − | then Result:= PInt64(@aByteArray8)^
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| − | else Result:= SwapEndian(PInt64(@aByteArray8)^);
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| − | end;
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| − | </syntaxhighlight>
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| − | {{Data types}}
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