contrib/bc: upgrade to version 6.7.6

This update fixes a potential issue when flushing stdout on exit
fails: longjmp could use an uninitialized target address variable.

Most files are included in t

contrib/bc: upgrade to version 6.7.6

This update fixes a potential issue when flushing stdout on exit
fails: longjmp could use an uninitialized target address variable.

Most files are included in this commit due to a changed date in
the copyright note.

(cherry picked from commit 52a5ec1b178fd07651446c7e31b1512794a04dbf)

MFC after: 3 days

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contrib/bc: upgrade to version 6.6.0

This update removes printing of a leading zero in scientific or
engineering output modes (which are an extended feature of this
implementation).

(cherry-picked

contrib/bc: upgrade to version 6.6.0

This update removes printing of a leading zero in scientific or
engineering output modes (which are an extended feature of this
implementation).

(cherry-picked from commit 8b83ef067441f6d3a4a55e92d1738724954a057c)

MFC after: 2 weeks

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contrib/bc: merge from vendor release 6.2.2

This update fixes a few issues in history editing and the processing
of the "quit" function. The "quit" function will no longer cause bc
to exit when enco

contrib/bc: merge from vendor release 6.2.2

This update fixes a few issues in history editing and the processing
of the "quit" function. The "quit" function will no longer cause bc
to exit when encountered in a script file (before any command from
the script has been executed).

New functions is_number(), is_string return 1 if the passed argument
is a number resp. a string. The asciify() function has been extended
to support the conversion of an array of numbers into a string.

Merge commit '1a63323d17fedb05b6962853e821c9d7c6b9853e'

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usr.bin/bc: update to version 5.3.1

This version adds support for command line editing and history using
the libedit or readline libraries in addition to the line editing
features available in previ

usr.bin/bc: update to version 5.3.1

This version adds support for command line editing and history using
the libedit or readline libraries in addition to the line editing
features available in previous versions.

The version in the base system is configured to use libedit.

This allows to choose between emacs and vi line editing commands and
to use command overrides via a ~/.editrc file.

Merge commit 'bd54318046bfee055b140705a5cfd4148e78da07'

PR: 264010

MFC after: 2 weeks

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contrib/bc: merge version 5.2.1 from vendor branch

Merge commit 'e63540eed295749528548c2e3a90f5a6e57275c8'

usr.bin/ghä-bc, contrib/bc: update to version 5.0.0

Merge commit 2f57ecae4b98e76e5d675563785a7e6c59c868c4

This is a new major release with a number of changes and extensions:

- Limited the number

usr.bin/ghä-bc, contrib/bc: update to version 5.0.0

Merge commit 2f57ecae4b98e76e5d675563785a7e6c59c868c4

This is a new major release with a number of changes and extensions:

- Limited the number of temporary numbers and made the space for them
static so that allocating more space for them cannot fail.
- Allowed integers with non-zero scale to be used with power, places,
and shift operators.
- Added greatest common divisor and least common multiple to lib2.bc.
- Made bc and dc UTF-8 capable.
- Added the ability for users to have bc and dc quit on SIGINT.
- Added the ability for users to disable prompt and TTY mode by
environment variables.
- Added the ability for users to redefine keywords.
- Added dc's modular exponentiation and divmod to bc.
- Added the ability to assign strings to variables and array elements
and pass them to functions in bc.
- Added dc's asciify command and stream printing to bc.
- Added bitwise and, or, xor, left shift, right shift, reverse,
left rotate, right rotate, and mod functions to lib2.bc.
- Added the functions s2u(x) and s2un(x,n), to lib2.bc.

MFC after: 1 week

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Merge commit '7a590c074ceede12b2b6e794f8703d6fa5749918'

Update to version 4.0.0

This version fixes an issue (missing pop of top-of-stack value in the
"P" command of the dc program).

This issue did

Merge commit '7a590c074ceede12b2b6e794f8703d6fa5749918'

Update to version 4.0.0

This version fixes an issue (missing pop of top-of-stack value in the
"P" command of the dc program).

This issue did not affect the bc program, since it does not use dc as
an back-end to actually perform the calculations as was the case with
the traditional bc and dc programs.

The major number has been bumped due to Windows support that has been
added to this version. It does not correspond to a major change that
might affect FreeBSD.

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Merge commit '47a52dc4d48f259ab7d9f9ba6b65f4f2331a22dc'

Update to version 3.2.6

MFC after: 3 days

Update to version 3.2.0