Re: Buffer contents well-defined after fgets() reaches EOF ?

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Sujet : Re: Buffer contents well-defined after fgets() reaches EOF ?
De : ldo (at) *nospam* nz.invalid (Lawrence D'Oliveiro)
Groupes : comp.lang.c
Date : 11. Feb 2025, 22:47:21
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <voggh9$1v580$1@dont-email.me>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13
User-Agent : Pan/0.161 (Chasiv Yar; )
On Tue, 11 Feb 2025 13:07:53 -0500, James Kuyper wrote:

I just tried it, using gcc  and found that fgets() does set the first
byte of the buffer to a null character. Therefore, it doesn't conform to
the requirements of the standard.

GCC is, however, the closest thing we have to a de-facto standard for C.

Is there another C compiler/runtime that behaves different?

Date Sujet#  Auteur
9 Feb 25 * Buffer contents well-defined after fgets() reaches EOF ?83Janis Papanagnou
9 Feb 25 +- Re: Buffer contents well-defined after fgets() reaches EOF ?1Kaz Kylheku
9 Feb 25 +* Re: Buffer contents well-defined after fgets() reaches EOF ?79Andrey Tarasevich
9 Feb 25 i+* Re: Buffer contents well-defined after fgets() reaches EOF ?61Andrey Tarasevich
10 Feb 25 ii`* Re: Buffer contents well-defined after fgets() reaches EOF ?60Lawrence D'Oliveiro
10 Feb 25 ii `* Re: Buffer contents well-defined after fgets() reaches EOF ?59Andrey Tarasevich
10 Feb 25 ii  +* Re: Buffer contents well-defined after fgets() reaches EOF ?37Andrey Tarasevich
10 Feb 25 ii  i+* Re: Buffer contents well-defined after fgets() reaches EOF ?35Michael S
13 Feb 25 ii  ii`* Re: Buffer contents well-defined after fgets() reaches EOF ?34Tim Rentsch
14 Feb 25 ii  ii `* Re: Buffer contents well-defined after fgets() reaches EOF ?33Michael S
14 Feb 25 ii  ii  +* Re: Buffer contents well-defined after fgets() reaches EOF ?2Michael S
14 Feb 25 ii  ii  i`- Re: Buffer contents well-defined after fgets() reaches EOF ?1Kaz Kylheku
14 Feb 25 ii  ii  +* Re: Buffer contents well-defined after fgets() reaches EOF ?21Kaz Kylheku
14 Feb 25 ii  ii  i+* Re: Buffer contents well-defined after fgets() reaches EOF ?3Keith Thompson
14 Feb 25 ii  ii  ii`* Re: Buffer contents well-defined after fgets() reaches EOF ?2Kaz Kylheku
15 Feb 25 ii  ii  ii `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Michael S
14 Feb 25 ii  ii  i+* Re: Buffer contents well-defined after fgets() reaches EOF ?14Janis Papanagnou
15 Feb 25 ii  ii  ii+- Re: Buffer contents well-defined after fgets() reaches EOF ?1Michael S
15 Feb 25 ii  ii  ii`* Re: Buffer contents well-defined after fgets() reaches EOF ?12Michael S
16 Feb 25 ii  ii  ii +* Re: Buffer contents well-defined after fgets() reaches EOF ?7Janis Papanagnou
16 Feb 25 ii  ii  ii i+* Re: Buffer contents well-defined after fgets() reaches EOF ?3James Kuyper
16 Feb 25 ii  ii  ii ii+- Re: Buffer contents well-defined after fgets() reaches EOF ?1Kaz Kylheku
16 Feb 25 ii  ii  ii ii`- Re: Buffer contents well-defined after fgets() reaches EOF ?1Janis Papanagnou
16 Feb 25 ii  ii  ii i`* Re: Buffer contents well-defined after fgets() reaches EOF ?3Michael S
16 Feb 25 ii  ii  ii i `* Re: Buffer contents well-defined after fgets() reaches EOF ?2Janis Papanagnou
17 Feb 25 ii  ii  ii i  `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Michael S
16 Feb 25 ii  ii  ii `* Re: Buffer contents well-defined after fgets() reaches EOF ?4Kaz Kylheku
16 Feb 25 ii  ii  ii  +* Re: Buffer contents well-defined after fgets() reaches EOF ?2Michael S
16 Feb 25 ii  ii  ii  i`- Re: Buffer contents well-defined after fgets() reaches EOF ?1Janis Papanagnou
16 Feb 25 ii  ii  ii  `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Janis Papanagnou
15 Feb 25 ii  ii  i+- Re: Buffer contents well-defined after fgets() reaches EOF ?1Michael S
15 Feb 25 ii  ii  i`* Re: Buffer contents well-defined after fgets() reaches EOF ?2Michael S
16 Feb 25 ii  ii  i `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Janis Papanagnou
14 Feb 25 ii  ii  +* Re: Buffer contents well-defined after fgets() reaches EOF ?5Janis Papanagnou
14 Feb 25 ii  ii  i`* Re: Buffer contents well-defined after fgets() reaches EOF ?4James Kuyper
14 Feb 25 ii  ii  i `* Re: Buffer contents well-defined after fgets() reaches EOF ?3Janis Papanagnou
15 Feb 25 ii  ii  i  `* Re: Buffer contents well-defined after fgets() reaches EOF ?2Michael S
16 Feb 25 ii  ii  i   `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Janis Papanagnou
15 Feb 25 ii  ii  +* Re: Buffer contents well-defined after fgets() reaches EOF ?3Tim Rentsch
15 Feb 25 ii  ii  i`* Re: Buffer contents well-defined after fgets() reaches EOF ?2Michael S
19 Feb 25 ii  ii  i `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Tim Rentsch
21 Feb 25 ii  ii  `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Lawrence D'Oliveiro
15 Feb 25 ii  i`- Re: Buffer contents well-defined after fgets() reaches EOF ?1Tim Rentsch
10 Feb 25 ii  +- Re: Buffer contents well-defined after fgets() reaches EOF ?1Janis Papanagnou
10 Feb 25 ii  `* Re: Buffer contents well-defined after fgets() reaches EOF ?20Lawrence D'Oliveiro
10 Feb 25 ii   `* Re: Buffer contents well-defined after fgets() reaches EOF ?19Andrey Tarasevich
10 Feb 25 ii    `* Re: Buffer contents well-defined after fgets() reaches EOF ?18Lawrence D'Oliveiro
10 Feb 25 ii     `* Re: Buffer contents well-defined after fgets() reaches EOF ?17James Kuyper
11 Feb 25 ii      `* Re: Buffer contents well-defined after fgets() reaches EOF ?16Lawrence D'Oliveiro
11 Feb 25 ii       +* Re: Buffer contents well-defined after fgets() reaches EOF ?11James Kuyper
11 Feb 25 ii       i+- Re: Buffer contents well-defined after fgets() reaches EOF ?1Kaz Kylheku
11 Feb 25 ii       i`* Re: Buffer contents well-defined after fgets() reaches EOF ?9Lawrence D'Oliveiro
11 Feb 25 ii       i `* Re: Buffer contents well-defined after fgets() reaches EOF ?8James Kuyper
11 Feb 25 ii       i  +* Re: Buffer contents well-defined after fgets() reaches EOF ?3Lawrence D'Oliveiro
11 Feb 25 ii       i  i`* Re: Buffer contents well-defined after fgets() reaches EOF ?2James Kuyper
12 Feb 25 ii       i  i `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Lawrence D'Oliveiro
11 Feb 25 ii       i  `* Re: Buffer contents well-defined after fgets() reaches EOF ?4Keith Thompson
11 Feb 25 ii       i   `* Re: Buffer contents well-defined after fgets() reaches EOF ?3James Kuyper
12 Feb 25 ii       i    `* Re: Buffer contents well-defined after fgets() reaches EOF ?2Keith Thompson
18 Feb 25 ii       i     `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Tim Rentsch
11 Feb 25 ii       `* Re: Buffer contents well-defined after fgets() reaches EOF ?4Andrey Tarasevich
11 Feb 25 ii        +- Re: Buffer contents well-defined after fgets() reaches EOF ?1Andrey Tarasevich
11 Feb 25 ii        +- Re: Buffer contents well-defined after fgets() reaches EOF ?1Kaz Kylheku
13 Feb 25 ii        `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Tim Rentsch
9 Feb 25 i`* Re: Buffer contents well-defined after fgets() reaches EOF ?17Janis Papanagnou
9 Feb 25 i +* Re: Buffer contents well-defined after fgets() reaches EOF ?3Michael S
9 Feb 25 i i`* Re: Buffer contents well-defined after fgets() reaches EOF ?2Janis Papanagnou
10 Feb 25 i i `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Mark Bourne
9 Feb 25 i +* Re: Buffer contents well-defined after fgets() reaches EOF ?11Andrey Tarasevich
9 Feb 25 i i`* Re: Buffer contents well-defined after fgets() reaches EOF ?10Janis Papanagnou
10 Feb 25 i i `* Re: Buffer contents well-defined after fgets() reaches EOF ?9Keith Thompson
10 Feb 25 i i  `* Re: Buffer contents well-defined after fgets() reaches EOF ?8Janis Papanagnou
10 Feb 25 i i   `* Re: Buffer contents well-defined after fgets() reaches EOF ?7Keith Thompson
10 Feb 25 i i    `* Re: Buffer contents well-defined after fgets() reaches EOF ?6Janis Papanagnou
10 Feb 25 i i     `* Re: Buffer contents well-defined after fgets() reaches EOF ?5Keith Thompson
10 Feb 25 i i      +* Re: Buffer contents well-defined after fgets() reaches EOF ?3Janis Papanagnou
11 Feb 25 i i      i+- Re: Buffer contents well-defined after fgets() reaches EOF ?1Mark Bourne
11 Feb 25 i i      i`- Re: Buffer contents well-defined after fgets() reaches EOF ?1Kaz Kylheku
17 Feb 25 i i      `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Lawrence D'Oliveiro
10 Feb 25 i `* Re: Buffer contents well-defined after fgets() reaches EOF ?2Mark Bourne
11 Feb 25 i  `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Mark Bourne
10 Feb 25 `* Re: Buffer contents well-defined after fgets() reaches EOF ?2Ben Bacarisse
10 Feb 25  `- Re: Buffer contents well-defined after fgets() reaches EOF ?1Janis Papanagnou

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