Implement printf(3) family %m format string extension.

Reviewed by: ed, dim (code only)
Sponsored by: Mellanox Technologies
MFC after: 1 week

Don't put multiple names on a single .Nm line. This fixes apropos(1)
output, from this:

strnlen, strlen, strlen,(3) - find length of string

Don't put multiple names on a single .Nm line. This fixes apropos(1)
output, from this:

strnlen, strlen, strlen,(3) - find length of string │·······

... to this:

strlen, strnlen(3) - find length of string

PR: 223525
MFC after: 2 weeks

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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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Remove _WITH_GETLINE and _WITH_DPRINTF guards

When adding getline(3) and dprintf(3) into libc, those guards were added
to prevent breaking too many ports.

7 years later the ports tree have been fix

Remove _WITH_GETLINE and _WITH_DPRINTF guards

When adding getline(3) and dprintf(3) into libc, those guards were added
to prevent breaking too many ports.

7 years later the ports tree have been fixed, it is time to remove this
FreeBSDism

While here remove the extra parenthesis surrounding dprintf(3)

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use .Mt to mark up email addresses consistently (part4)

PR: 191174
Submitted by: Franco Fichtner <franco at lastsummer.de>

Clarify that the ' flag is an apostrophe.

MFC after: 2 weeks

- Fix the claim that the output is always null-terminated. This isn't
true if the size is zero.
- Fix a claim that sprintf() is the same as snprintf() with an
infinite size. It's equivalent to s

- Fix the claim that the output is always null-terminated. This isn't
true if the size is zero.
- Fix a claim that sprintf() is the same as snprintf() with an
infinite size. It's equivalent to snprintf() with a size of
INT_MAX + 1.
- Document the return values in the return values section.
- Document the possible errno value of EOVERFLOW.

MFC after: 2 weeks

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Revert changes of 'assure' to 'ensure' made in r211936.

Approved by: rrs (mentor)

Fix incorrect usage of 'assure' and 'insure'.

Approved by: rrs (mentor)

mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.

GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS a

mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.

GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS and SECURITY CONSIDERATIONS as common sections and where to put
them.

Found by: mdocml lint run
Reviewed by: ru

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mdoc: use macro for +- that is understood by mdocml

Reviewed by: brueffer

I feel this wording of the history is more clear.
ANSIfy vasprintf() while I'm here.

%U was macroized in mdoc(7), escape.

MFC: r200019

Fix the dprintf() prototype.

Fix the dprintf() prototype.

PR: 141087
Submitted by: Jeremy Huddleston <[email protected]>
MFC after: 3 days

Add dprintf() and vdprintf() from POSIX.1-2008. Like getline(),
dprintf() is a simple wrapper around another function, so we may as
well implement it. But also like getline(), we can't prototype it b

Add dprintf() and vdprintf() from POSIX.1-2008. Like getline(),
dprintf() is a simple wrapper around another function, so we may as
well implement it. But also like getline(), we can't prototype it by
default right now because it would break too many ports.

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Update the manpage to reflect r145172.

Updates for changes in the way printf() handles hex floating point
numbers.

Per Regents of the University of Calfornia letter, remove advertising
clause.

# If I've done so improperly on a file, please let me know.

Remove references to nonexistent "FreeBSD Security Architecture" document.

Document that the length modifier l is ignored for floating point
conversion specifiers (a, A, e, E, f, F, g and G).

Markup, grammar, and spelling fixes.

Bring the *printf(3) documentation up to date with the code:

- Update and improve the documentation for %[aA]
o Like %[eE], %[aA] may round the result if a precision is specified.
o Grammar poli

Bring the *printf(3) documentation up to date with the code:

- Update and improve the documentation for %[aA]
o Like %[eE], %[aA] may round the result if a precision is specified.
o Grammar police: Fix a split infinitive.
o The FreeBSD implementation does better than the minimum required
by C99 (literal translation of the mantissa). The digit before
the hexadecimal-point is never 0 unless the number itself is 0.
o Clarify that the exponent field represents a decimal exponent of 2.
o Discuss the fact that multiple valid representations are possible.
o Remove the entry in the BUGS section claiming that %[aA] is not
implemented.

- Remove the entry in the BUGS section claiming that the ' flag for
printing thousands separators is unimplemented for floating-point.

- Remove the entry in the BUGS section claiming that the L modifier
reduces the precision to "double" before conversion.

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Note that the printf(3) and scanf(3) family of functions don't deal with
multibyte characters in the format string correctly.

Document the fact that the printf() family of functions return negative
values (EOF in our case) on error, and some of the possible errno values
in an Errors section.

PR: 39257