How to Convert a Byte Slice '[]uint8' to float64 in GoLang?

Converting Byte Slice "[]uint8" to float64 in GoLang

Converting a byte slice into a float64 requires a specialized approach since the standard strconv.ParseFloat function may not be suitable. To address this, we provide a solution utilizing binary.LittleEndian to handle the conversion process.

The provided code demonstrates a custom function named Float64frombytes that takes a byte slice as input. Within the function, the binary.LittleEndian.Uint64 method is employed to convert the byte slice to an unsigned 64-bit integer (uint64). This integer value is then used as the argument for math.Float64frombits.

To illustrate the conversion, the code first converts the mathematical constant Pi (math.Pi) into a byte slice using the complementary function Float64bytes. This byte slice is then passed to Float64frombytes to retrieve its float64 representation.

The output verifies that the conversion is successful, displaying the byte slice representation of Pi and its corresponding float64 value:

[24 45 68 84 251 33 9 64]
3.141592653589793

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