source: avoid use of 'very' in comments

splay: use access functions, add asserts, use Curl_timediff

- add set/get functions for the custom data in a tree node

- use Curl_timediff for time comparisons instead of the custom

splay: use access functions, add asserts, use Curl_timediff

- add set/get functions for the custom data in a tree node

- use Curl_timediff for time comparisons instead of the custom macro, as they
do the exact same things.

- add asserts to catch mistakes better

- updated test 1309 accordingly

Closes #14562

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code: language cleanup in comments

Based on the standards and guidelines we use for our documentation.

- expand contractions (they're => they are etc)
- host name = > hostname

code: language cleanup in comments

Based on the standards and guidelines we use for our documentation.

- expand contractions (they're => they are etc)
- host name = > hostname
- file name => filename
- user name = username
- man page => manpage
- run-time => runtime
- set-up => setup
- back-end => backend
- a HTTP => an HTTP
- Two spaces after a period => one space after period

Closes #14073

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copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- save

copyright: update all copyright lines and remove year ranges

- they are mostly pointless in all major jurisdictions
- many big corporations and projects already don't use them
- saves us from pointless churn
- git keeps history for us
- the year range is kept in COPYING

checksrc is updated to allow non-year using copyright statements

Closes #10205

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splay: avoid using -1 in unsigned variable

To fix icc compiler warning integer conversion resulted in a change of sign

Closes #9179

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the

copyright: make repository REUSE compliant

Add licensing and copyright information for all files in this repository. This
either happens in the file itself as a comment header or in the file
`.reuse/dep5`.

This commit also adds a Github workflow to check pull requests and adapts
copyright.pl to the changes.

Closes #8869

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checksrc: detect more kinds of NULL comparisons we avoid

Co-authored-by: Jay Satiro
Closes #8180

cleanup: constify unmodified static structs

Constify a number of static structs that are never modified. Make them
const to show this.

Closes #7759

tidy-up: make conditional checks more consistent

... remove '== NULL' and '!= 0'

Closes #6912

splay: rename Curl_splayremovebyaddr to Curl_splayremove

... and remove the old unused proto for the old Curl_splayremove
version.

Closes #6269

copyright: fix year ranges

Follow-up from 4d2f8006777

curl.se: new home

Closes #6172

cleanup: remove FIXME and TODO comments

They serve very little purpose and mostly just add noise. Most of them
have been around for a very long time. I read them all before removing

cleanup: remove FIXME and TODO comments

They serve very little purpose and mostly just add noise. Most of them
have been around for a very long time. I read them all before removing
or rephrasing them.

Ref: #3876
Closes #3883

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whitespace fixes

- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few inde

whitespace fixes

- replace tabs with spaces where possible
- remove line ending spaces
- remove double/triple newlines at EOF
- fix a non-UTF-8 character
- cleanup a few indentations/line continuations
in manual examples

Closes https://github.com/curl/curl/pull/3037

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cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

etc

Closes #2631

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code style: use spaces around equals signs

splay: fix signed/unsigned mismatch warning

Follow-up to 4dee50b.

Ref: https://github.com/curl/curl/pull/1693

timeval: struct curltime is a struct timeval replacement

... to make all libcurl internals able to use the same data types for
the struct members. The timeval struct differs subtly on se

timeval: struct curltime is a struct timeval replacement

... to make all libcurl internals able to use the same data types for
the struct members. The timeval struct differs subtly on several
platforms so it makes it cumbersome to use everywhere.

Ref: #1652
Closes #1693

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multi: fix queueing of pending easy handles

Multi handles repeatedly invert the queue of pending easy handles when
used with CURLMOPT_MAX_TOTAL_CONNECTIONS. This is caused by a multistep

multi: fix queueing of pending easy handles

Multi handles repeatedly invert the queue of pending easy handles when
used with CURLMOPT_MAX_TOTAL_CONNECTIONS. This is caused by a multistep
process involving Curl_splaygetbest and violates the FIFO property of
the multi handle.
This patch fixes this issue by redefining the "best" node in the
context of timeouts as the "smallest not larger than now", and
implementing the necessary data structure modifications to do this
effectively, namely:
- splay nodes with the same key are now stored in a doubly-linked
circular list instead of a non-circular one to enable O(1)
insertion to the tail of the list
- Curl_splayinsert inserts nodes with the same key to the tail of
the same list
- in case of multiple nodes with the same key, the one on the head of
the list gets selected

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Improve code readbility

... by removing the else branch after a return, break or continue.

Closes #1310

URLs: change all http:// URLs to https://

Revert "cleanup: general removal of TODO (and similar) comments"

This reverts commit 64e959ffe37c436503f9fed1ce2d6ee6ae50bd9a.

Feedback-by: Dan Fandrich
URL: http://curl.haxx.se

Revert "cleanup: general removal of TODO (and similar) comments"

This reverts commit 64e959ffe37c436503f9fed1ce2d6ee6ae50bd9a.

Feedback-by: Dan Fandrich
URL: http://curl.haxx.se/mail/lib-2015-11/0062.html

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cleanup: general removal of TODO (and similar) comments

They tend to never get updated anyway so they're frequently inaccurate
and we never go back to revisit them anyway. We document is

cleanup: general removal of TODO (and similar) comments

They tend to never get updated anyway so they're frequently inaccurate
and we never go back to revisit them anyway. We document issues to work
on properly in KNOWN_BUGS and TODO instead.

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checksrc: use space after comma

copyright: Updated following recent edits