Difference between revisions of "Lua:byteTableToDouble"

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[[Category:Lua]]
 
[[Category:Lua]]
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'''function''' byteTableToDouble(''Table'') ''':''' float
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'''function''' byteTableToDouble(''Table'') ''':''' Number
  
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Converts a byte table to a QWORD (8 bytes), interpreting them as a double precision floating point value.
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Converts a table of bytes to a double precision (64-bit) floating point number.
  
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===Function Parameters===
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=== Function Parameters ===
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{|width="85%" cellpadding="10%" cellspacing="0" border="0"
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{|width="85%" cellpadding="10%" cellpadding="5%" cellspacing="0" border="0"
 
 
!align="left"|Parameter
 
!align="left"|Parameter
 
!align="left"|Type
 
!align="left"|Type
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|-
 
|-
 
|Table
 
|Table
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|table
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|Table
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|The table of bytes to convert
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|A table containing the bytes to convert (least significant byte first).
 
|}
 
|}
  
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===Returns===
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Number — The resulting double precision floating point value.
  
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== Examples ==
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===Explanation===
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Code:
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The function takes a table of bytes (e.g., <code>{0x1F, 0x85, 0xEB, 0x51, 0xB8, 0x1E, 0x09, 0x40}</code>) and interprets them as a 64-bit double in little-endian order.
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  local bt = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x59, 0x40 }
 
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  local value = byteTableToDouble(bt)
 
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  print(string.format('0x%0X', value))
 
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  print(value)
 
  
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Output:
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For example, <code>byteTableToDouble({0x1F, 0x85, 0xEB, 0x51, 0xB8, 0x1E, 0x09, 0x40})</code> returns <code>3.14</code>.
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  0x64
 
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  100.0
 
  
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===Examples===
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<pre>
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local doubleValue = byteTableToDouble({0x1F, 0x85, 0xEB, 0x51, 0xB8, 0x1E, 0x09, 0x40})
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print(doubleValue) -- Output: 3.14
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</pre>
  
 
{{LuaSeeAlso}}
 
{{LuaSeeAlso}}

Latest revision as of 17:41, 11 July 2025

function byteTableToDouble(Table) : Number

Converts a table of bytes to a double precision (64-bit) floating point number.

Function Parameters[edit]

Parameter Type Description
Table Table A table containing the bytes to convert (least significant byte first).

Returns[edit]

Number — The resulting double precision floating point value.

Explanation[edit]

The function takes a table of bytes (e.g., {0x1F, 0x85, 0xEB, 0x51, 0xB8, 0x1E, 0x09, 0x40}) and interprets them as a 64-bit double in little-endian order.

For example, byteTableToDouble({0x1F, 0x85, 0xEB, 0x51, 0xB8, 0x1E, 0x09, 0x40}) returns 3.14.

Examples[edit]

local doubleValue = byteTableToDouble({0x1F, 0x85, 0xEB, 0x51, 0xB8, 0x1E, 0x09, 0x40})
print(doubleValue) -- Output: 3.14

See also[edit]

Related Functions[edit]



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