[Issue 18290] New: std.conv.parse throws ConvOverflowException for negative values in hex

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18290

          Issue ID: 18290
           Summary: std.conv.parse throws ConvOverflowException for
                    negative values in hex
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: trivial
          Priority: P1
         Component: phobos
          Assignee: nobody at puremagic.com
          Reporter: rumbu at rumbu.ro

string input = "80000000";
auto x = parse!int(input, 16);
//ConvOverflowException

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