libc: Implement N2630.

This adds formatted input/output of binary integer numbers to the printf(), scanf(), and strtol() families, including their wide-character counterparts.

Reviewed by: imp, ema

libc: Implement N2630.

This adds formatted input/output of binary integer numbers to the printf(), scanf(), and strtol() families, including their wide-character counterparts.

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41511

(cherry picked from commit d9dc1603d6e48cca84cad3ebe859129131b8387c)

libc: Add unit tests for N2630 and possible collateral damage.

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41512

(cherry picked from commit b9385720f34b536ef2568a642e8b1fad0450056f)

libc: Document support for binary integers.

Reviewed by: debdrup, emaste
Differential Revision: https://reviews.freebsd.org/D41522

(cherry picked from commit 76edfabbecdec686a570b8e009d5ea4112f943e0)

libc: Fix fixed-width case in the new integer parser.

Fixes: d9dc1603d6e4
Differential Revision: https://reviews.freebsd.org/D41622

(cherry picked from commit aca3bd1602577591e5cd237c4bb0bb71b3be0c75)

libc: Add a wide version of snprintf_test.

Reviewed by: imp, emaste
Differential Revision: https://reviews.freebsd.org/D41726

(cherry picked from commit 4ec9ee9912765ac4ca57353999caa92a23283d8e)

libc: Suppress format checks on printf() / scanf() tests.

Reviewed by: jrtc27, markj, emaste
Differential Revision: https://reviews.freebsd.org/D41727

(cherry picked from commit 294bd2827e61a78041f6613f4b82235fcc454157)

Approved by: re (gjb)

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Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

libc: drop "All rights reserved" from Foundation copyrights

This has already been done for most files that have the Foundation as
the only listed copyright holder. Do it now for files that list
mul

libc: drop "All rights reserved" from Foundation copyrights

This has already been done for most files that have the Foundation as
the only listed copyright holder. Do it now for files that list
multiple copyright holders, but have the Foundation copyright in its own
section.

Sponsored by: The FreeBSD Foundation

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General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier f

General further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 3-Clause license.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.

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Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is

Renumber copyright clause 4

Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by: Jan Schaumann <[email protected]>
Pull Request: https://github.com/freebsd/freebsd/pull/96

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Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit

Implement xlocale APIs from Darwin, mainly for use by libc++. This adds a
load of _l suffixed versions of various standard library functions that use
the global locale, making them take an explicit locale parameter. Also
adds support for per-thread locales. This work was funded by the FreeBSD
Foundation.

Please test any code you have that uses the C standard locale functions!

Reviewed by: das (gdtoa changes)
Approved by: dim (mentor)

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Add support for multibyte thousands_sep encodings, e.g., U+066C.
The integer thousands' separator code is rewritten in order to
avoid having to preallocate a buffer for the largest possible
digit str

Add support for multibyte thousands_sep encodings, e.g., U+066C.
The integer thousands' separator code is rewritten in order to
avoid having to preallocate a buffer for the largest possible
digit string with the most possible instances of the longest
possible multibyte thousands' separator. The new version inserts
thousands' separators for integers using the same code as floating point.

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Simplify printf's inlined output buffering routines. On amd64, this
reduces the code size by about 10% and improves performance slightly.

Reduce code duplication by moving functions that are identical in both
vfprintf.c and vfwprintf.c (except for char/wchar_t differences) to a
common header file.

Convert the insidious macros that handle printf()'s buffering into
slightly less evil inline functions, and move the buffering state into
a struct. This will make it possible for helper routines to p

Convert the insidious macros that handle printf()'s buffering into
slightly less evil inline functions, and move the buffering state into
a struct. This will make it possible for helper routines to produce
output for printf() directly, making it possible to untangle the code
somewhat.

In wprintf(), use the same buffering mechanism to reduce diffs to
printf(). This has the side-effect of causing wprintf() to catch write
errors that it previously ignored.

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