Compiler Error C3179

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an unnamed managed type is not allowed

All CLR classes and structs must have names.

The following sample generates C3179:

// C3179a.cpp
// compile with: /clr /c
typedef value struct { // C3179
// try the following line instead
// typedef value struct MyStruct {
   int i;
} V;

The following sample generates C3179:

// C3179b.cpp
// compile with: /clr:oldSyntax /c
#using <mscorlib.dll>
typedef __value struct {   // C3179
// try the following line instead
// typedef __value struct MyStruct {
   int i;
} V;