128 bits integers with gcc
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Revision as of 10:12, 18 July 2012 by Roux
gcc offers the possibility to work with 128 bits integers using two 64 bits words.
__int128_t a = -10293840984; unsigned __int128_t b = 10293840984;
similarly __float128 exists for floating numbers on 128 bits integers.
For Quadruple precision calculation: gcc offers a library for mathematics functions :