stdio.h: remove outdated comment for vscanf

When these functions where added to stdio.h 1.72 on 2008-08-04, the
conditional included _NETBSD_SOURCE.

The additional condition was removed in stdio.h

stdio.h: remove outdated comment for vscanf

When these functions where added to stdio.h 1.72 on 2008-08-04, the
conditional included _NETBSD_SOURCE.

The additional condition was removed in stdio.h 1.99 from 2020-03-20,
but the comment was not updated.

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stdio.h: sync comment for struct __sFILE with reality

In stdio.h 1.1 from 1993-03-21, the struct had a member named _ub for
the ungetc buffer. That member was repurposed in stdio.h 1.42 from
2001-1

stdio.h: sync comment for struct __sFILE with reality

In stdio.h 1.1 from 1993-03-21, the struct had a member named _ub for
the ungetc buffer. That member was repurposed in stdio.h 1.42 from
2001-12-07 in order to support wide characters.

Remove the reference to the 'WARNING above' since there is no such
warning and even when this comment was added in stdio.h 1.20 from
1998-02-02, there was none.

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stdio.h: remove outdated comment about fpos_t

The 'fairly grotesque' from 1994-04-03 referred to the conditional
definition of the type fpos_t, using two different integer types that
both happened t

stdio.h: remove outdated comment about fpos_t

The 'fairly grotesque' from 1994-04-03 referred to the conditional
definition of the type fpos_t, using two different integer types that
both happened to be 64-bit.

When stdio was changed on 2012-01-22 to keep track of the mbstate, the
conditional type definition was removed and the comment no longer made
sense.

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stdio.h: fix typo in comment

stdio.h: fix typo in comment

Fix visibility of various C99 features, esp. for C++11.

move P_tmpdir from "/var/tmp/" to "/tmp/".

the main effect of this is to make GCC and other libiberty using
tools use /tmp instead of /var/tmp for compiler temp files,
which can be a bottleneck on l

move P_tmpdir from "/var/tmp/" to "/tmp/".

the main effect of this is to make GCC and other libiberty using
tools use /tmp instead of /var/tmp for compiler temp files,
which can be a bottleneck on larger systems.

a survey of other platforms shows only OSX also uses /var/tmp,
everyone else has switched to /tmp long ago.


cons: some smaller systems may have a smaller /tmp than /var/tmp,
and this may cause builds to fail with out of space earlier.
point the build to /var/tmp using TMPDIR in this case.

one can argue that setting TMPDIR would work around this, but we
want to have the effect for all users without having special setup.

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gcc 5, my patience is waning.

Put fseeko, ftello, pread, and pwrite in the POSIX 2001 namespace.
Ok christos, apb, martin

One vscanf_l is ample.

PR/49715: Henning Petersen: Missing _*_DECLS in stdio.h around popenve.

add popenve().

add open_{,w}memstream

cast to LHS type and minor KNF.

Fix use of getline and friends in C++ code.

Move declarations of getdelim() and getline() from the (incorrect) ANSI C
section to POSIX-2008. From Jarmo Jaakkola in PR standards/48788.

add the signal safe prototypes

Don't pollute the name space with the various stdio macros for C++.

Add missing __BEGIN_DECLS/__END_DECLS.

Add scanf_l and wscanf_l families.

Add explicit locale versions for the printf family. Replace asprintf,
snprintf and sprintf with simple wrappers around the corresponding
va_list functions to reduce code duplication.

White space

specify size of the array to help -fmudflap

funopen2()

From tnozaki@: make fpos_t a complex object that keeps track of the parse
state of the stream. Change argument of the seek function to funopen() from
fpos_t to off_t. Make f{g,s}etpos() use the new f

From tnozaki@: make fpos_t a complex object that keeps track of the parse
state of the stream. Change argument of the seek function to funopen() from
fpos_t to off_t. Make f{g,s}etpos() use the new fpos_t struct, while providing
backwards compatible entry points. Approved by releng@

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