__uint128_t throws compile error in intel c++ compiler

[Divya_S_]

Hi All,
I am trying to compile some code using intel c++ compiler in windows. 
But I am keep getting compile error for __uint128_t datatype - error: identifier "__uint128_t" is undefined.
The same code compiles successfully with gcc. Does it mean intel compiler does not have support for __uint128_t data type in windows?
Somebody please help to overcome this failure as soon as possible.
Thanks,
Divya

[TimP]

128 bit int is a gcc extension which can't support all the operations required of a standard data type.  Possible workarounds include m128 data types.  I don't know if intel has received feature requests on this or if it might be considered under a gcc compatibility switch.