Mercurial > gnulib
annotate doc/posix-functions/ctime_r.texi @ 39913:73d60b1f9c96
doc: Update for Solaris 11.4.
* doc/**/*.texi: For bugs that exist in both Solaris 11.3 and 11.4,
mention Solaris 11.4.
* m4/printf.m4: Update comments about Solaris.
* m4/log.m4: Likewise.
* m4/log10.m4: Likewise.
* m4/logb.m4: Likewise.
* m4/logbf.m4: Likewise.
* m4/logbl.m4: Likewise.
* m4/rename.m4: Likewise.
* m4/wcrtomb.m4: Likewise.
* m4/hostent.m4: Likewise.
* m4/servent.m4: Likewise.
author | Bruno Haible <bruno@clisp.org> |
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date | Sun, 14 Oct 2018 09:33:46 +0200 |
parents | 11af6bbd6df5 |
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rev | line source |
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1 @node ctime_r |
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2 @section @code{ctime_r} |
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3 @findex ctime_r |
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4 |
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5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/ctime_r.html} |
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6 |
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7 Gnulib module: extensions |
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8 |
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9 Portability problems fixed by Gnulib: |
070329237839
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10 @itemize |
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11 @item |
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12 This function has an incompatible declaration on some platforms: |
39913
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13 Solaris 11.4 (when @code{_POSIX_PTHREAD_SEMANTICS} is not defined). |
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14 @end itemize |
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15 |
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16 Portability problems not fixed by Gnulib: |
070329237839
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17 @itemize |
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18 @item |
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19 This function is missing on some platforms: |
18977 | 20 mingw, MSVC 14. |
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21 @item |
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22 This function may put more than 26 bytes into the argument buffer if an |
070329237839
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23 invalid year is passed. |
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24 @end itemize |
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25 |
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26 @code{ctime_r} takes a pre-allocated buffer and length of the buffer, |
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27 and returns @code{NULL} on errors. |
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28 The input buffer should be at least 26 bytes in size. The output |
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29 string is locale-independent. However, years can have more than 4 |
070329237839
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30 digits if @code{time_t} is sufficiently wide, so the length of the |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
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parents:
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31 required output buffer is not easy to determine. Increasing the |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
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parents:
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32 buffer size when @code{ctime_r} returns @code{NULL} is not necessarily |
070329237839
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33 sufficient. The @code{NULL} return value could mean some other error |
070329237839
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34 condition, which will not go away by increasing the buffer size. |
070329237839
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35 |
070329237839
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36 A more flexible function is @code{strftime}. However, note that it is |
070329237839
Rename two directories: headers -> posix-headers, functions -> posix-functions.
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parents:
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37 locale dependent. |