Difference between revisions of "128 bits integers with gcc"

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(Created page with "gcc offers the possibility to work with 128 bits integers using two 64 bits words. <source lang="cpp"> __int128_t a = -10293840984; unsigned __int128_t b = 102938409...")
 
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unsigned __int128_t b =  10293840984;
 
unsigned __int128_t b =  10293840984;
 
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</source>
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similarly __float128 exists for floating numbers on 128 bits integers.
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For Quadruple precision calculation: gcc offers a library for mathematics functions :
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* [http://gcc.gnu.org/onlinedocs/libquadmath/ libquadmath]

Latest revision as of 10:12, 18 July 2012

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 :