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annotate doc/posix-functions/vsnprintf.texi @ 15607:6355dc4626b5

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doc: Update regarding MSVC 9. * doc/gnulib-intro.texi (Target Platforms): Classify MSVC as "rarely tested". * doc/posix-functions/*.texi: Update with info about MSVC 9. * doc/posix-headers/*.texi: Likewise. * doc/pastposix-functions/*.texi: Likewise. * doc/glibc-functions/*.texi: Likewise. * doc/glibc-headers/*.texi: Likewise.
author Bruno Haible <bruno@clisp.org>
date Sun, 11 Sep 2011 21:56:17 +0200
parents 2171e9d2231b
children ee328959515f
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1 @node vsnprintf
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2 @section @code{vsnprintf}
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3 @findex vsnprintf
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4
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5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/vsnprintf.html}
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6
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7 Gnulib module: vsnprintf or vsnprintf-posix
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8
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9 Portability problems fixed by either Gnulib module @code{vsnprintf} or @code{vsnprintf-posix}:
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10 @itemize
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11 @item
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12 This function is missing on some platforms:
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13 IRIX 5.3, OSF/1 4.0, Solaris 2.5.1.
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14 @item
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15 This function does not support format directives that access arguments in an
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16 arbitrary order, such as @code{"%2$s"}, on some platforms:
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17 NetBSD 3.0, mingw, MSVC 9, BeOS.
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18 @item
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19 This function overwrites memory even when a size argument of 1 is passed on some
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20 platforms:
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21 Linux libc5, BeOS.
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22 @item
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23 This function does not return a byte count as specified in C99 on some
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24 platforms:
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25 HP-UX 11, IRIX 6.5, OSF/1 5.1, Solaris 9, mingw, MSVC 9.
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26 @end itemize
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27
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28 Portability problems fixed by Gnulib module @code{vsnprintf-posix}:
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29 @itemize
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30 @item
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31 This function does not support size specifiers as in C99 (@code{hh}, @code{ll},
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32 @code{j}, @code{t}, @code{z}) on some platforms:
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33 AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.24, mingw, MSVC 9, BeOS.
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34 @item
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35 printf of @samp{long double} numbers is unsupported on some platforms:
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36 mingw, MSVC 9, BeOS.
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37 @item
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38 printf @code{"%f"}, @code{"%e"}, @code{"%g"} of Infinity and NaN yields an
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39 incorrect result on some platforms:
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40 AIX 5.2, OSF/1 5.1, Solaris 11 2010-11, mingw, MSVC 9.
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41 @item
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42 This function does not support the @samp{a} and @samp{A} directives on some
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43 platforms:
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44 glibc-2.3.6, MacOS X 10.5, NetBSD 5.0, OpenBSD 4.0, AIX 5.2, HP-UX 11,
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45 IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, Cygwin 1.5.x, mingw, MSVC 9, BeOS.
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46 @item
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47 This function does not support the @samp{F} directive on some platforms:
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48 NetBSD 3.0, AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9,
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49 Cygwin 1.5.x, mingw, MSVC 9, BeOS.
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50 @item
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51 This function does not support the @samp{ls} directive on some platforms:
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52 OpenBSD 4.0, IRIX 6.5, Solaris 2.6, Cygwin 1.5.x, Haiku.
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53 @item
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54 This function does not support precisions in the @samp{ls} directive correctly
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55 on some platforms:
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56 Solaris 11 2010-11.
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57 @item
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58 This function doesn't support the @code{'} flag on some platforms:
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59 NetBSD 3.0, Cygwin 1.5.24, mingw, MSVC 9.
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60 @item
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61 This function behaves incorrectly when a @samp{-} flag and a negative width
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62 are specified together, on some platforms:
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63 HP-UX 10.20.
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64 @item
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65 printf @code{"%010f"} of NaN and Infinity yields an incorrect result (padded
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66 with zeroes) on some platforms:
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67 MacOS X 10.5, FreeBSD 6.0, NetBSD 5.0, AIX 5.2, IRIX 6.5, OSF/1 5.1, Solaris 11 2010-11, Cygwin 1.5.x, mingw, MSVC 9.
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68 @item
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69 This function does not support precisions larger than 512 or 1024 in integer,
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70 floating-point and pointer output on some platforms:
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71 AIX 7.1, Solaris 10/x86, mingw, MSVC 9, BeOS.
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72 @item
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73 This function mishandles large floating point precisions
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74 (for example, formatting 1.0 with @samp{"%.511f"})
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75 on some platforms:
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76 Solaris 10.
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77 @item
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78 This function can crash in out-of-memory conditions on some platforms:
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79 MacOS X 10.3, FreeBSD 6.0, NetBSD 5.0.
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80 @item
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81 This function does not truncate the result as specified in C99 on some platforms:
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82 mingw, MSVC 9.
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83 @item
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84 This function does not fully support the @samp{n} directive on some platforms:
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85 HP-UX 11, mingw, MSVC 9.
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86 @item
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87 This function overwrites memory even when a zero size argument is passed on some
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88 platforms:
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89 HP-UX 11, OSF/1 5.1.
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90 @end itemize
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91
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92 Portability problems not fixed by Gnulib:
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93 @itemize
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94 @end itemize