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Fix *printf behaviour regarding the %ls directive.
author Bruno Haible <bruno@clisp.org>
date Thu, 26 Feb 2009 12:54:20 +0100
parents b885f8c983db
children 41012a39667b
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1 @node vfprintf
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2 @section @code{vfprintf}
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3 @findex vfprintf
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4
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5 POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/vfprintf.html}
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6
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7 Gnulib module: vfprintf-posix or stdio, sigpipe
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8
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9 Portability problems fixed by Gnulib module @code{vfprintf-posix}:
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10 @itemize
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11 @item
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12 This function does not support size specifiers as in C99 (@code{hh}, @code{ll},
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13 @code{j}, @code{t}, @code{z}) on some platforms:
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14 AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9, Cygwin 1.5.24, mingw, BeOS.
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15 @item
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16 printf of @samp{long double} numbers is unsupported on some platforms:
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17 mingw, BeOS.
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18 @item
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19 printf @code{"%f"}, @code{"%e"}, @code{"%g"} of Infinity and NaN yields an
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20 incorrect result on some platforms:
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21 AIX 5.2, OSF/1 5.1, Solaris 10, mingw.
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22 @item
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23 This function does not support the @samp{a} and @samp{A} directives on some
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24 platforms:
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25 glibc-2.3.6, MacOS X 10.3, NetBSD 3.0, OpenBSD 4.0, AIX 5.2, HP-UX 11,
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26 IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x, mingw, BeOS.
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27 @item
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28 This function does not support the @samp{F} directive on some platforms:
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29 NetBSD 3.0, AIX 5.1, HP-UX 11.23, IRIX 6.5, OSF/1 5.1, Solaris 9,
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30 Cygwin 1.5.x, mingw, BeOS.
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31 @item
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32 This function does not support the @samp{ls} directive on some platforms:
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33 OpenBSD 4.0, IRIX 6.5, Solaris 2.6, Haiku.
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34 @item
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35 This function does not support format directives that access arguments in an
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36 arbitrary order, such as @code{"%2$s"}, on some platforms:
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37 NetBSD 3.0, mingw, BeOS.
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38 @item
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39 This function doesn't support the @code{'} flag on some platforms:
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40 NetBSD 3.0, Cygwin 1.5.24, mingw.
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41 @item
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42 This function behaves incorrectly when a @samp{-} flag and a negative width
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43 are specified together, on some platforms:
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44 HP-UX 10.20.
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45 @item
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46 printf @code{"%010f"} of NaN and Infinity yields an incorrect result (padded
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47 with zeroes) on some platforms:
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48 MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0, AIX 5.2, IRIX 6.5, OSF/1 5.1, Solaris 10, Cygwin 1.5.x, mingw.
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49 @item
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50 This function does not support precisions larger than 512 or 1024 in integer,
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51 floating-point and pointer output on some platforms:
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52 mingw, BeOS.
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53 @item
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54 This function can crash in out-of-memory conditions on some platforms:
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55 MacOS X 10.3, FreeBSD 6.0, NetBSD 3.0.
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56 @end itemize
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57
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58 Portability problems fixed by Gnulib module @code{stdio} or @code{vfprintf-posix}, together with module @code{sigpipe}:
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59 @itemize
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60 @item
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61 When writing to a pipe with no readers, this function fails, instead of
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62 obeying the current @code{SIGPIPE} handler, on some platforms:
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63 mingw.
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64 @end itemize
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65
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66 Portability problems not fixed by Gnulib:
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67 @itemize
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68 @end itemize