A call to std::num_get fails to parse negative values (specifically -0 in my
example).
/** Begin Test **/
#include <cassert>
#include <locale>
#include <sstream>
int main ()
{
unsigned long val = 1;
std::stringbuf sb ("-0");
std::istream is (&sb);
std::ios_base::iostate err (std::ios_base::goodbit);
typedef std::istreambuf_iterator<char> iter_t;
const std::num_get<char, iter_t>& fac =
std::use_facet<std::num_get <char> >(is.getloc ());
fac.get (is, iter_t (), is, err, val);
assert (is.eofbit == err && 0 == val);
return 0;
}
/** End Test **/
Even thought this test case only exercises -0 I think the method should be able
to handle any negative value. I have noted that other implementations do not
appear to exhibit this behavior.
--
Summary: std::num_get fails to pase negative zero input correctly
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: ritter at roguewave dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39802
