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? ??? ?? C++ C#? ??? ???? C/C ??? ????? ?? ???? ??? ??????

C#? ??? ???? C/C ??? ????? ?? ???? ??? ??????

Jan 19, 2025 am 06:04 AM

How to Efficiently Parse C/C   Structures from Byte Arrays in C#?

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?? ???? ??? GCHandle? ???? ??? ? ??? ??? ??? ?????? Marshal.PtrToStructure? ???? ?? ???? ???? ??? ? ????? ?? ??? ???? ????. ? ??? ????? ????? ???? ??? ???? C# ??? ????? ???.

GCHandle handle = GCHandle.Alloc(byte_array, GCHandleType.Pinned);
NewStuff stuff = (NewStuff)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(NewStuff));
handle.Free();

?? ? ???? ?? ??

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T ByteArrayToStructure<T>(byte[] bytes) where T : struct
{
    GCHandle handle = GCHandle.Alloc(bytes, GCHandleType.Pinned);
    try
    {
        T stuff = (T)Marshal.PtrToStructure(handle.AddrOfPinnedObject(), typeof(T));
        return stuff;
    }
    finally
    {
        handle.Free();
    }
}

?? ? ??? ??? ?? ???? ?? ??? ??? ? ????.

unsafe T ByteArrayToStructure<T>(byte[] bytes) where T : struct
{
    fixed (byte* ptr = &bytes[0])
    {
        return (T)Marshal.PtrToStructure((IntPtr)ptr, typeof(T));
    }
}

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BinaryReader ?? ??

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InstallaC compilerlikeg usingpackagemanagersordevelopmenttoolsdependingontheOS.2.WriteaC programandsaveitwitha.cppextension.3.Compiletheprogramusingg hello.cpp-ohellotogenerateanexecutable.4.Runtheexecutablewith./helloonLinux/macOSorhello.exeonWi

C ??? ?? ?? ? ? C ??? ?? ?? ? ? Sep 17, 2025 am 08:45 AM

Custom ???? ???? C ????? ??? ?? ??? ?? ? ? ????. 1. ??? LoggingAllocator? ??, ??, ?? ? ??? ?????? ??? ?? ??? ?????. 2. ???? STL ???? ?? ?? ?? ??? ????? ?? value_type ? Rebind ???? ???????. 3. ???? ?? ? ?? ?? ?? ??? ?????, ?? ????? ????? ?????. 4. ?? ???????? ??? ?, ?? ???, ??? ?? ? ???? ???? ?????. 5. C 17 ??? ?? ? ??? ????? std :: allocator_traits? ?? ?? ? ? ????.

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STD :: SYSTEM () ??? ???? System ??? ???? System ??? ???? STD :: SYSTEM ( "LS-L")? ?? C ??? ??? ??? ?????? ?? ?? -1??? ?? ????? ??? ? ????.

CMake? C ????? ???? ??? ?????? CMake? C ????? ???? ??? ?????? Sep 18, 2025 am 01:04 AM

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C? ??? STL? ???? ??????. ?? ?? ??? ??? ????? ?? ??? ???????. ??? ??? ????, ?? ?? ??? ????, ?? ??? ??? ??????. ?? ?? ?? ?? ? ? ??? ?? ????? ?? ???? ? ? ??? ??????.

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theautokeywordletstheCompilerDuceVariAbletypesfrominitializers, retingverbosity and rowingimprovingmainability.itsimplifiescodewithcomplextypes liTeratorsandlambdas, supportSqualifierstoavoidunnecessaryCopies, andAdaUtomallasticallasticallasticallasticcopies

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AstaticVariableinc? indainsvaluebetsweenfunctioncallsandisinitializedonce.2.insideafunction, itpreservesstateacrosscalls, suchascountingiterations.3.inaclass, itissharedamongallinstancesand mustedefinedoupedoutsideclasstoavoidingerrors.4.4

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