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* manual/stdio.texi (snprintf): Clarify handling of the trailing

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null byte in the output string.
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Jeff Law
2012-08-13 13:12:18 -06:00
parent a107920668
commit 42443a4792
2 changed files with 7 additions and 0 deletions
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@ -1,3 +1,8 @@
2012-08-13 Jeff Law <law@redhat.com>
* manual/stdio.texi (snprintf): Clarify handling of the trailing
null byte in the output string.
2012-08-10 Joseph Myers <joseph@codesourcery.com> 2012-08-10 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/kernel-features.h * sysdeps/unix/sysv/linux/kernel-features.h

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manual/stdio.texi
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@ -2341,6 +2341,8 @@ The @code{snprintf} function is similar to @code{sprintf}, except that
the @var{size} argument specifies the maximum number of characters to the @var{size} argument specifies the maximum number of characters to
produce. The trailing null character is counted towards this limit, so produce. The trailing null character is counted towards this limit, so
you should allocate at least @var{size} characters for the string @var{s}. you should allocate at least @var{size} characters for the string @var{s}.
If @var{size} is zero, nothing, not even the null byte, shall be written and
@var{s} may be a null pointer.
The return value is the number of characters which would be generated The return value is the number of characters which would be generated
for the given input, excluding the trailing null. If this value is for the given input, excluding the trailing null. If this value is