Re: What is your opinion about unsigned int u = -2 ?

Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:
>

Thiago Adams <thiago.adams@gmail.com> writes:
>

More samples..
max uint64  + 1 is signed 128 bits in gcc and unsigned  long long in clang
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#ifdef __clang__
static_assert(TYPE_IS(9223372036854775808, unsigned long long ));
#else
static_assert(TYPE_IS(9223372036854775808, __int128));
#endif
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https://godbolt.org/z/hveY44ov4

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9223372036854775808 is 2**63, or INT64_MAX-1, not UINT64_MAX-1.

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Of course you meant INT64_MAX + 1 (and presumably UINT64_MAX + 1).