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Boolean values are not blittable
See original GitHub issueIn .NET AFAICT boolean values are 1 byte, whereas in WinRT they are 4 bytes. This probably does not impact most scenarios (e.g. I believe all calling conventions requires “upgrading” all integers less than 32-bits to 32-bits, albeit that’s my recollection of printf, which is a different calling convention, anyway), however it does impact things like arrays, struct sizes, etc. We should probably account for this in the helpers and whatever fallout comes out of that.
FWIW here’s some decent documentation on what is and is not blittable: https://docs.microsoft.com/en-us/dotnet/framework/interop/blittable-and-non-blittable-types
Issue Analytics
- State:
- Created 4 years ago
- Reactions:1
- Comments:7 (7 by maintainers)
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That’s not true. WinRT bool values are 1 byte.
Also note that
boolcan be marshalled as desired by usingUnmanagedType.I1