mpf_class values from GMP library
source.C#include <x/sql/decimal.H> mpf_class value; conn->execute("INSERT INTO table VALUES(?)", value);Makefile.am
decimal SQL columns can always be
INSERTed or SELECTed as
text string values, floats,
doubles, or maybe even
ints or long longs.
LIBCXX and
unixODBC
handle the data type conversion automatically.
The GMP library implements arbitrary precision math that does not suffer from
floating point round-off errors, and is a natural fit for the
SQL decimal datatype.
To use GMP library's mpf_class values:
Include the <x/sql/decimal.H> file.
Link with -lsqldecimal.
This enables mpf_class to be used directly
with execute() or
execute_vector();
or receive fetched column values with
fetch()
or fetch_vectors().