locale_facets.tcc (num_get<char>::_M_extract): Fix signage, exponent, and scientific formatting issues.


2000-05-31  Russell Davidson  <russell@ehess.cnrs-mrs.fr>

	* bits/locale_facets.tcc (num_get<char>::_M_extract): Fix signage,
	exponent, and scientific formatting issues.
	* testsuite/27_io/istream_extractor_arith.cc (test09): Add tests.

From-SVN: r34328