Please sort out warnings at least all level 3 and most Level 4

[Smurf-IV]

e.g. in Foundation using VS170 project with no adjustments (i.e. still \W3) the following are seen:

Severity	Code	Description	Project	File	Line
Warning	C4244	'=': conversion from 'uint64_t' to 'poco_double_conversion::Bignum::Chunk', possible loss of data (compiling source file src\NumericString.cpp)	Foundation	Z:\Repos\SRLE\Thirdparty\PoC\PocoProject.org\Foundation\src\bignum.cc	149
Warning	C4267	'initializing': conversion from 'size_t' to 'int', possible loss of data	Foundation	Z:\Repos\SRLE\Thirdparty\PoC\PocoProject.org\Foundation\src\RegularExpression.cpp	326
Warning	C4267	'initializing': conversion from 'size_t' to 'int', possible loss of data	Foundation	Z:\Repos\SRLE\Thirdparty\PoC\PocoProject.org\Foundation\src\RegularExpression.cpp	327

On Level 4 (The company requirement and also to have the them as errors ....)
Then there is a lot of noise coming through:

[aleks-f]

Please send a pull request with fixes to devel branch. Narrowing warnings are fixable with static_cast. The double_conversion warnings are upstream and won't be fixed in poco. Upgrading double conversion to latest release may help.

[andrewauclair]

If you're using VS2022 then you can just set external includes to W0. Also, if you're using W4 you surely have a list of ignored warnings, right? C4100 is basically just noise that can be ignored, along with several other warnings.