DIGITAL C++
Using DIGITAL C++ for DIGITAL UNIX Systems

U
unexpected C++ predefined function
unexpected function
V
<varargs.h> header file
Variable
multiple declaration
Variable-length argument list
$verbose variable
Volatile object
volatile type specifier
W
whatis debugger command #1
whatis debugger command #2
whatis debugger command #3
whatis debugger command #4
X
XTASO
See Extended Truncated Address Support Option
_
__DECCXX_VER predefined macro