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

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Sujet : Re: What is your opinion about unsigned int u = -2 ?
De : tr.17687 (at) *nospam* z991.linuxsc.com (Tim Rentsch)
Groupes : comp.lang.c
Date : 11. Aug 2024, 21:57:07
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <86mslin5gc.fsf@linuxsc.com>
References : 1 2 3 4 5 6 7 8 9 10 11 12
User-Agent : Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux)
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
>
#ifdef __clang__
static_assert(TYPE_IS(9223372036854775808, unsigned long long ));
#else
static_assert(TYPE_IS(9223372036854775808, __int128));
#endif
>
https://godbolt.org/z/hveY44ov4
>
9223372036854775808 is 2**63, or INT64_MAX-1, not UINT64_MAX-1.

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

Date Sujet#  Auteur
31 Jul 24 * What is your opinion about unsigned int u = -2 ?56Thiago Adams
31 Jul 24 +* Re: What is your opinion about unsigned int u = -2 ?7Ben Bacarisse
11 Aug 24 i`* Re: What is your opinion about unsigned int u = -2 ?6Tim Rentsch
11 Aug 24 i `* Re: What is your opinion about unsigned int u = -2 ?5Vir Campestris
11 Aug 24 i  +- Re: What is your opinion about unsigned int u = -2 ?1Richard Damon
11 Aug 24 i  +* Re: What is your opinion about unsigned int u = -2 ?2James Kuyper
12 Aug 24 i  i`- Re: What is your opinion about unsigned int u = -2 ?1Vir Campestris
12 Aug 24 i  `- Re: What is your opinion about unsigned int u = -2 ?1Tim Rentsch
31 Jul 24 +- Re: What is your opinion about unsigned int u = -2 ?1James Kuyper
1 Aug 24 `* Re: What is your opinion about unsigned int u = -2 ?47Blue-Maned_Hawk
1 Aug 24  +* Re: What is your opinion about unsigned int u = -2 ?45Ben Bacarisse
2 Aug 24  i`* Re: What is your opinion about unsigned int u = -2 ?44Thiago Adams
2 Aug 24  i `* Re: What is your opinion about unsigned int u = -2 ?43Kenny McCormack
2 Aug 24  i  +* Re: What is your opinion about unsigned int u = -2 ?34Bart
2 Aug 24  i  i+- Re: What is your opinion about unsigned int u = -2 ?1Ben Bacarisse
2 Aug 24  i  i+* Re: What is your opinion about unsigned int u = -2 ?2Thiago Adams
2 Aug 24  i  ii`- Re: What is your opinion about unsigned int u = -2 ?1Thiago Adams
2 Aug 24  i  i+* Re: What is your opinion about unsigned int u = -2 ?29Keith Thompson
2 Aug 24  i  ii+* Re: What is your opinion about unsigned int u = -2 ?27James Kuyper
3 Aug 24  i  iii+* Re: What is your opinion about unsigned int u = -2 ?19Thiago Adams
3 Aug 24  i  iiii+* Re: What is your opinion about unsigned int u = -2 ?8Thiago Adams
3 Aug 24  i  iiiii`* Re: What is your opinion about unsigned int u = -2 ?7Keith Thompson
3 Aug 24  i  iiiii `* Re: What is your opinion about unsigned int u = -2 ?6Thiago Adams
3 Aug 24  i  iiiii  `* Re: What is your opinion about unsigned int u = -2 ?5Keith Thompson
3 Aug 24  i  iiiii   `* Re: What is your opinion about unsigned int u = -2 ?4Thiago Adams
4 Aug 24  i  iiiii    `* Re: What is your opinion about unsigned int u = -2 ?3Keith Thompson
4 Aug 24  i  iiiii     `* Re: What is your opinion about unsigned int u = -2 ?2Thiago Adams
4 Aug 24  i  iiiii      `- Re: What is your opinion about unsigned int u = -2 ?1Thiago Adams
3 Aug 24  i  iiii`* Re: What is your opinion about unsigned int u = -2 ?10Keith Thompson
3 Aug 24  i  iiii `* Re: What is your opinion about unsigned int u = -2 ?9Thiago Adams
3 Aug 24  i  iiii  `* Re: What is your opinion about unsigned int u = -2 ?8Keith Thompson
3 Aug 24  i  iiii   `* Re: What is your opinion about unsigned int u = -2 ?7Thiago Adams
3 Aug 24  i  iiii    `* Re: What is your opinion about unsigned int u = -2 ?6Keith Thompson
3 Aug 24  i  iiii     +* Re: What is your opinion about unsigned int u = -2 ?3David Brown
3 Aug 24  i  iiii     i`* Re: What is your opinion about unsigned int u = -2 ?2Thiago Adams
4 Aug 24  i  iiii     i `- Re: What is your opinion about unsigned int u = -2 ?1Keith Thompson
25 Aug 24  i  iiii     `* Re: What is your opinion about unsigned int u = -2 ?2dave thompson 2
25 Aug 24  i  iiii      `- Re: What is your opinion about unsigned int u = -2 ?1Keith Thompson
3 Aug 24  i  iii`* Re: What is your opinion about unsigned int u = -2 ?7David Brown
3 Aug 24  i  iii `* Re: What is your opinion about unsigned int u = -2 ?6Thiago Adams
3 Aug 24  i  iii  +* Re: What is your opinion about unsigned int u = -2 ?4Thiago Adams
4 Aug 24  i  iii  i`* Re: What is your opinion about unsigned int u = -2 ?3Keith Thompson
11 Aug 24  i  iii  i `* Re: What is your opinion about unsigned int u = -2 ?2Tim Rentsch
11 Aug 24  i  iii  i  `- Re: What is your opinion about unsigned int u = -2 ?1Keith Thompson
4 Aug 24  i  iii  `- Re: What is your opinion about unsigned int u = -2 ?1Keith Thompson
9 Aug 24  i  ii`- Re: What is your opinion about unsigned int u = -2 ?1Bonita Montero
3 Aug 24  i  i`- Re: What is your opinion about unsigned int u = -2 ?1David Brown
4 Aug 24  i  `* Re: What is your opinion about unsigned int u = -2 ?8Bonita Montero
8 Aug 24  i   `* Re: What is your opinion about unsigned int u = -2 ?7Lawrence D'Oliveiro
8 Aug 24  i    `* Re: What is your opinion about unsigned int u = -2 ?6David Brown
9 Aug 24  i     `* Re: What is your opinion about unsigned int u = -2 ?5Bonita Montero
9 Aug 24  i      `* Re: What is your opinion about unsigned int u = -2 ?4David Brown
9 Aug 24  i       +* Re: What is your opinion about unsigned int u = -2 ?2Bonita Montero
9 Aug 24  i       i`- Re: What is your opinion about unsigned int u = -2 ?1David Brown
10 Aug 24  i       `- Re: What is your opinion about unsigned int u = -2 ?1Richard Damon
4 Aug 24  `- Re: What is your opinion about unsigned int u = -2 ?1Bonita Montero

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