Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Type System.Decimal loses precision during serialization and deserialization when the value contains floating-point digits #9

Open
lupuscaoticus opened this issue Nov 27, 2024 · 0 comments · May be fixed by #10
Open

Type System.Decimal loses precision during serialization and deserialization when the value contains floating-point digits #9

lupuscaoticus opened this issue Nov 27, 2024 · 0 comments · May be fixed by #10

Comments

@lupuscaoticus
Copy link

Problem

When serializing and deserializing System.Decimal values, especially those with floating-point digits, there is a noticeable loss of precision. This can lead to incorrect values being processed in applications that rely on precise decimal calculations.

Reproduction

  1. Divide System.Decimal::MaxValue by 10.
  2. Serialize the Value using ConvertTo-Metadata.
  3. Deserialize the serialized value using ConvertFrom-Metadata.
  4. Compare the original and deserialized values.

Solution

  1. Append 'd' Suffix during serialization to the string representation of the System.Decimal value. This ensures that during deserialization, the value is correctly interpreted as a System.Decimal and not mistakenly as a System.Double.

Example

[String](                                      [Decimal]::MaxValue                            ) #* 79228162514264337593543950335
[String](                                      [Decimal]::MaxValue    | ConvertTo-Metadata    ) #* 79228162514264337593543950335
[String]( ConvertFrom-Metadata -InputObject  $([Decimal]::MaxValue    | ConvertTo-Metadata)   ) #* 79228162514264337593543950335
[String](                                      [Decimal]::MaxValue/10                         ) #* 7922816251426433759354395033.5
[String](                                      [Decimal]::MaxValue/10 | ConvertTo-Metadata    ) #* 7922816251426433759354395033.5
[String]( ConvertFrom-Metadata -InputObject  $([Decimal]::MaxValue/10 | ConvertTo-Metadata)   ) #! 7.92281625142643E+27 ($_ -Is [Double])
[String]( ConvertFrom-Metadata -InputObject "$([Decimal]::MaxValue/10 | ConvertTo-Metadata)d" ) #* 7922816251426433759354395033.5
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees
No one assigned
Labels
None yet
Projects
None yet
Milestone
No milestone
1 participant
@lupuscaoticus