unsigned
The unsigned
keyword indicates that the most significant bit of an integer variable
represents a data bit rather than a signed bit. This keyword is optional and
can be used with any of the character and integer types char, wchar_t,
int, long, short, and small.
When you use
the MIDL compiler switch /char, character and integer types that appear in the IDL file
without explicit sign keywords can appear with the signed or unsigned
keyword in the generated header file. To avoid confusion, explicitly specify
the sign of the integer and character types.
See Also