有没有GCC中128位的整数？ [英] Is there a 128 bit integer in gcc?

问题描述

我想是因为我想存储两个64位数的乘法结果的128位整数。有没有在GCC 4.4及以上的任何这样的事情？

I want a 128 bit integer because I want to store results of multiplication of two 64 bit numbers. Is there any such thing in gcc 4.4 and above?

推荐答案

啊，大整数是不是C的强项。

Ah, big integers are not C's forte.

GCC确实有一个 uint128_t / int128_t 键入，从版本4.something（不知道这里）开始。我似乎不过记得的是，有一个 __ int128_t DEF之前。

GCC does have an uint128_t/int128_t type, starting from version 4.something (not sure here). I do seem to recall, however, that there was a __int128_t def before that.

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