Tools.h++ Manual

23-2 104011 Tandem Computers Incorporated
23
Example In this example, a bit vector 24 bits long is declared and exercised:
Public constructors RWGBitVec( size )();
Construct a bit vector size elements long, with all bits initialized to FALSE .
RWGBitVec( size )(RWBoolean f);
Construct a bit vector size elements long, with all bits initialized to f .
RWGBitVec( size )(unsigned long v);
Construct a bit vector size elements long, initialized to the bits of v . If size is
greater than sizeof(v) , the extra bits will be set to zero.
Assignment operators RWGBitVec(sz)& operator=(const RWGBitVec(sz)&
v);
Set each element of self to the corresponding bit value of v . Return a reference
to self.
RWGBitVec(sz)& operator=(RWBoolean f);
Set all elements of self to the boolean value f.
RWGBitVec(sz)& operator&=(const RWGBitVec(sz)&
v);
RWGBitVec(sz)& operator^=(const RWGBitVec(sz)&
v);
RWGBitVec(sz)& operator|=(const RWGBitVec(sz)&
v);
#include <rw/gbitvec.h>
declare(RWGBitVec,24) // declare a 24 bit long vector
implement(RWGBitVec, 24) // implement the vector
main()
{
RWGBitVec(24) a, b; // Allocate two vectors.
a(2) = TRUE; // Set bit 2 (the third bit) of
a on.
b(3) = TRUE; // Set bit 3 (the fourth bit
of b on.
RWGBitVec(24) c = a ^ b; // Set c to the XOR of a and b.
}