<?xml version="1.0" encoding="us-ascii"?>
<ErrorDocumentation xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <ErrorName>CS1521</ErrorName>
  <Examples>
    <string>// CS1521: Invalid base type
// Line: 9
// Compiler options: -unsafe

struct C
{
}

unsafe class C2: C*
{
}
</string>
    <string>// cs1521-3.cs: Invalid base type
// Line: 9

class C2: object[]
{
}
</string>
    <string>// CS1521: Invalid base type
// Line: 8

class C
{
}

class C2: C[]
{
}

</string>
  </Examples>
</ErrorDocumentation>