char.ToLower error

[TheVogels]

Area of Cosmos - What area of Cosmos are we dealing with?

char.ToLower

Expected Behaviour - What do you think that should happen?

Ex: 'a' > 'a', 'A' > 'a'

Actual Behaviour - What unexpectedly happens?

Reproduction - How did you get this error to appear?

char.ToLower()

Version - Were you using the User Kit or Dev Kit? And what User Kit version or Dev Kit commit (Cosmos, IL2CPU, X#)?

0.1.0-localbuild20240420053827
I am having a little trouble trying to find where Cosmos was built.

Log

Build started at 11:54 AM...
1>------ Build started: Project: CosmosKernel1, Configuration: Debug Any CPU ------
Failed to restore C:\Users\rjaco\source\repos\Networking test\Raycaster server\Raycaster server.csproj (in 1 ms).
Failed to restore C:\Users\rjaco\source\repos\Networking test\Raycaster\Raycaster.csproj (in 0.7 ms).
NuGet package restore failed. Please see Error List window for detailed warnings and errors.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(169,40,169,41): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(170,40,170,41): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(171,39,171,40): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(200,50,200,51): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(251,39,251,40): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(307,42,307,43): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(618,40,618,41): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(629,41,629,42): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(632,33,632,34): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(631,35,631,36): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(671,33,671,34): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\Kernel.cs(674,26,674,27): warning CS8632: The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.
1>CosmosKernel1 -> C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\bin\Debug\net6.0\CosmosKernel1.dll
1>Executing IL2CPU on assembly
1>Kernel Base: Cosmos.System.Kernel
1>Checking target assembly: C:\Users\rjaco\source\repos\Networking test\CosmosKernel1\bin\Debug\net6.0\CosmosKernel1.dll
1>IL2CPU : warning : Loading plugs from assembly: Cosmos.Core_Asm, Version=10.0.0.0, Culture=neutral, PublicKeyToken=5ae71220097cb983
1>IL2CPU : warning : Loading plugs from assembly: Cosmos.Core_Plugs, Version=10.0.0.0, Culture=neutral, PublicKeyToken=5ae71220097cb983
1>IL2CPU : warning : Loading plugs from assembly: Cosmos.Debug.Kernel.Plugs.Asm, Version=10.0.0.0, Culture=neutral, PublicKeyToken=5ae71220097cb983
1>IL2CPU : warning : Loading plugs from assembly: Cosmos.System2_Plugs, Version=10.0.0.0, Culture=neutral, PublicKeyToken=5ae71220097cb983
1>IL2CPU : warning : Invalid plug method! Target method not found. : A0SystemObjectA2CosmosCore_PlugsSystemActivatorImplCreateInstanceA2CosmosCoreCosmosRuntimeTypeA0SystemBooleanA0SystemBoolean
1>IL2CPU : warning : Invalid plug method! Target method not found. : A0SystemInt64A3CosmosSystem_PlugsSystemIOOSFileStreamStrategyImplSeekA0SystemInt64A0SystemObject
1>IL2CPU : warning : Invalid plug method! Target method not found. : A0SystemVoidA3CosmosSystem_PlugsSystemIOStreamWriterImplWriteFormatHelperA0SystemStringA0A0SystemObjectarrayA0SystemBoolean
1>Detecting fields for type 'IL2CPU.Debug.Symbols.FIELD_INFO'
1>Detecting fields for type 'IL2CPU.Debug.Symbols.FIELD_MAPPING'
1>Detecting fields for type 'IL2CPU.Debug.Symbols.MethodIlOp'
1>Detecting fields for type 'IL2CPU.Debug.Symbols.Method'
1>Detecting fields for type 'IL2CPU.Debug.Symbols.Document'
1>Detecting fields for type 'IL2CPU.Debug.Symbols.AssemblyFile'
1>Detecting fields for type 'IL2CPU.Debug.Symbols.LOCAL_ARGUMENT_INFO'
1>IL2CPU task took 00:00:13.8467066
1>-g dwarf2 -f elf -o bin\Debug\net6.0\CosmosKernel1.obj -dELF_COMPILATION -O3 bin\Debug\net6.0\CosmosKernel1.asm
1>Yasm task took 00:00:07.2904992
1>-Ttext 0x2000000 -Tdata 0x1000000 -e Kernel_Start -o bin\Debug\net6.0\CosmosKernel1.bin bin\Debug\net6.0\CosmosKernel1.obj -m elf_i386
1>LD task took 00:00:00.3255443
1>UEFI enabled.
1>-as mkisofs -relaxed-filenames -J -R -l -allow-lowercase -o bin\Debug\net6.0\CosmosKernel1.iso -b boot/limine-bios-cd.bin -no-emul-boot -boot-load-size 4 -boot-info-table --efi-boot boot/limine-uefi-cd.bin -efi-boot-part --efi-boot-image bin\Debug\net6.0\ISO
1>GNU xorriso 1.5.2 : RockRidge filesystem manipulator, libburnia project.
1>
1>Drive current: -outdev 'stdio:bin\Debug\net6.0\CosmosKernel1.iso'
1>Media current: stdio file, overwriteable
1>Media status : is blank
1>Media summary: 0 sessions, 0 data blocks, 0 data, 96.6g free
1>Added to ISO image: directory '/'='/cygdrive/c/Users/rjaco/source/repos/Networking test/CosmosKernel1/bin\Debug\net6.0\ISO'
1>xorriso : UPDATE : 13 files added in 1 seconds
1>xorriso : UPDATE : 13 files added in 1 seconds
1>xorriso : UPDATE : 99.26% done
1>ISO image produced: 29530 sectors
1>Written to medium : 29530 sectors at LBA 0
1>Writing to 'stdio:bin\Debug\net6.0\CosmosKernel1.iso' completed successfully.
1>
1>Done building project "CosmosKernel1.csproj".
========== Build: 1 succeeded, 0 failed, 0 up-to-date, 0 skipped ==========
========== Build completed at 11:54 AM and took 22.853 seconds ==========

[TheVogels]

I am able to work around this by using 'A'.ToString().ToLower()[0].

[ADev531]

Why this is not working?

[9xbt]

Would be helpful if you posted your code.

[9xbt]

Would be helpful if you posted your code.

And by that I mean the whole class not just you telling us that you used char.ToLower() and that's it.

[developertemur]

char struct doesn't have ToLower method, but string class has so you can use with 'a'.ToString().ToLower()

[Dimkqo]

The method char.ToLower requires known CultureInfo and TextInfo attributes (or plugs?). I discovered that method char.ToLowerInvariant(char) works fine.