lib: handle visual studio code C/C++ extension

[rzalamena]

Add some pragmas to handle errors that the C/C++ extension is not able to understand.

See discussion for more details.

[NetDEF-CI]

Continuous Integration Result: SUCCESSFUL

Continuous Integration Result: SUCCESSFUL

Congratulations, this patch passed basic tests

Tested-by: NetDEF / OpenSourceRouting.org CI System

CI System Testrun URL: https://ci1.netdef.org/browse/FRR-PULLREQ2-8581/

This is a comment from an automated CI system.
For questions and feedback in regards to this CI system, please feel free to email
Martin Winter - mwinter (at) opensourcerouting.org.

[eqvinox]

Nits

[rzalamena]

@eqvinox thanks! Makes sense. I edited the comments before the pragmas to tell which file to look at for the troubled code since this context was lost with the move.

Should the pragma comment be generic? Or keeping the example/error message is fine? I don't know what is helpful for future readers, but I though the reference could help in the future to decide whether to keep it or not (it could eventually be fixed by visual studio code).

[NetDEF-CI]

Continuous Integration Result: SUCCESSFUL

Congratulations, this patch passed basic tests

Tested-by: NetDEF / OpenSourceRouting.org CI System

CI System Testrun URL: https://ci1.netdef.org/browse/FRR-PULLREQ2-8609/

This is a comment from an automated CI system.
For questions and feedback in regards to this CI system, please feel free to email
Martin Winter - mwinter (at) opensourcerouting.org.

Warnings Generated during build:

Checkout code: Successful with additional warnings

Report for compiler.h | 12 issues
===============================================
< ERROR: need consistent spacing around '*' (ctx:WxV)
< #430: FILE: /tmp/f1-1855904/compiler.h:430:
< ERROR: Macros with multiple statements should be enclosed in a do - while loop
< #430: FILE: /tmp/f1-1855904/compiler.h:430:
< WARNING: macros should not use a trailing semicolon
< #430: FILE: /tmp/f1-1855904/compiler.h:430:
< ERROR: Macros with multiple statements should be enclosed in a do - while loop
< #433: FILE: /tmp/f1-1855904/compiler.h:433:
< ERROR: need consistent spacing around '*' (ctx:WxV)
< #434: FILE: /tmp/f1-1855904/compiler.h:434:
< ERROR: need consistent spacing around '*' (ctx:WxV)
< #435: FILE: /tmp/f1-1855904/compiler.h:435:

[eqvinox]

Should the pragma comment be generic? Or keeping the example/error message is fine? I don't know what is helpful for future readers, but I though the reference could help in the future to decide whether to keep it or not (it could eventually be fixed by visual studio code).

I think it's good as it is.