static void VerifyByValArrayInStruct()
{
// equal
var structure1 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField { value = 1 },
new StructWithIntField { value = 2 },
new StructWithIntField { value = 3 },
new StructWithIntField { value = 4 },
new StructWithIntField { value = 5 }
}
};
int size = Marshal.SizeOf(structure1);
IntPtr memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure1, memory, false);
}
finally
{
Marshal.FreeHGlobal(memory);
}
// underflow
var structure2 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField { value = 1 },
new StructWithIntField { value = 2 },
new StructWithIntField { value = 3 },
new StructWithIntField { value = 4 }
}
};
bool expectedException = false;
size = Marshal.SizeOf(structure2);
memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure2, memory, false);
}
catch (ArgumentException)
{
expectedException = true;
}
finally
{
Marshal.FreeHGlobal(memory);
}
if (!expectedException)
throw new Exception("Expected ArgumentException");
// overflow
var structure3 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField { value = 1 },
new StructWithIntField { value = 2 },
new StructWithIntField { value = 3 },
new StructWithIntField { value = 4 },
new StructWithIntField { value = 5 },
new StructWithIntField { value = 6 }
}
};
size = Marshal.SizeOf(structure3);
memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure3, memory, false);
}
finally
{
Marshal.FreeHGlobal(memory);
}
}
static void VerifyByValArrayInStruct()
{
// equal
var structure1 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
},
new StructWithIntField {
value = 5
}
}
};
int size = Marshal.SizeOf(structure1);
IntPtr memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure1, memory, false);
}
finally
{
Marshal.FreeHGlobal(memory);
}
// underflow
var structure2 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
}
}
};
bool expectedException = false;
size = Marshal.SizeOf(structure2);
memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure2, memory, false);
}
catch (ArgumentException)
{
expectedException = true;
}
finally
{
Marshal.FreeHGlobal(memory);
}
if (!expectedException)
{
throw new Exception("Expected ArgumentException");
}
// overflow
var structure3 = new StructWithByValArray()
{
array = new StructWithIntField[]
{
new StructWithIntField {
value = 1
},
new StructWithIntField {
value = 2
},
new StructWithIntField {
value = 3
},
new StructWithIntField {
value = 4
},
new StructWithIntField {
value = 5
},
new StructWithIntField {
value = 6
}
}
};
size = Marshal.SizeOf(structure3);
memory = Marshal.AllocHGlobal(size);
try
{
Marshal.StructureToPtr(structure3, memory, false);
}
finally
{
Marshal.FreeHGlobal(memory);
}
}
