TestInt32.cc: Modified so that on 64-bit machines the overflow of the '* 32' operation does not reset the value of _buf to zero, but instead _buf cycles back to 32.
TestInt32.cc: Modified so that on 64-bit machines the overflow of the
'* 32' operation does not reset the value of _buf to zero, but instead
_buf cycles back to 32.

OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap4,OPENDAP/libdap,OPENDAP/libdap4,OPENDAP/libdap,OPENDAP/libdap4,OPENDAP/libdap,OPENDAP/libdap