Consider adding option in csproj for software and fixed point number types

[Shadowblitz16]

It's really useful in networking to have cross platform deterministic data types
Instead of needing to send data over the network we can just send inputs and rely on the fact that our output will always be the same.

consider adding..

<FloatingType>software</FloatingType>

and

<FloatingType>softwarefixed</FloatingType>

To csproj and dotnet.

This would automatically make half, float, double, decimal use fixed or software based implimentation
The default would be...

<FloatingType>hardware</FloatingType>

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Issue Details

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It's really useful in networking to have cross platform deterministic data types
Instead of needing to send data over the network we can just send inputs and rely on the fact that our output will always be the same.

consider adding..

<FloatingType>software</FloatingType>

and

<FloatingType>softwarefixed</FloatingType>

To csproj and dotnet.

This would automatically make half, float, double, decimal use fixed or software based implimentation
The default would be...

<FloatingType>hardware</FloatingType>

Author:	Shadowblitz16
Assignees:	-
Labels:	area-System.Numerics, untriaged
Milestone:	-

[danmoseley]

Overall issue
#61885

Other issues come up eg
#42747

[tannergooding]

This would automatically make half, float, double, decimal use fixed or software based implimentation

Primitive floating-point arithmetic should already be deterministic as should various higher level functions like FusedMultiplyAdd, Abs, Sqrt, etc

A few APIs such as Cos, Sin, or Tan defer to the C Runtime implementation and can differ; but this wouldn't be controlled via a build configuration switch and is in general tracked by the issues Dan linked to above.