On 16.06.2013 13:14, David Nadlinger wrote:
> In std/format.d:
>
>> @@ -3662,7 +3667,14 @@ unittest
>>      {
>>          auto f = 3.14;
>>          formatReflectTest(f, "%s",  `3.14`);
>> -        formatReflectTest(f, "%e",  `3.140000e+00`);
>> +        version (MinGW)
>> +        {
>> +            formatReflectTest(f, "%e",  `3.140000e+000`);
>> +        }
>> +        else
>> +        {
>> +            formatReflectTest(f, "%e",  `3.140000e+00`);
>> +        }

If the MinGW runtime is based on the MS runtime, you can configure the 
number of digits in the exponent with

     _set_output_format(_TWO_DIGIT_EXPONENT);