[Bug libstdc++/59421] New: stof(), stod() wrong result

[stefan.helmert@t-online.de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59421

            Bug ID: 59421
           Summary: stof(), stod() wrong result
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: stefan.helmert@t-online.de

sometimes:

y = stod(str); // with str = "0"
cout << y << endl;

prints out:
0.4167

It depends on where the executable is copied to. It does not depend on
optimisation level. I use c++11.

workaround:

y = stod(""+str+"");

Windows 7 64 bit, mingw-builds/x64-4.8.1-posix-seh-rev5