>Hi, ALL, >Right now my C Language option on the Xcode 5.1.1 is set to "GNU99". >When using this option I am getting a lot of different warnings like: > >Value Conversion Issue >Implicit conversion loses integer precision. > >I know its just a warning, but I prefer the code to be compiled clean. >I would guess that I need a change the option to get a clean compile. > >Which one I should use?
Hi, I am resurrecting this old thread, because I recently had a similar issue and didn't find an answer in this list. When building sqlite-amalgamation-3210000 using Xcode 9.1 in a newly created project, I get a few dozen warnings, mostly about value conversion issues as mentioned above, a few about ambiguous MIN/MAX macro definitions, unreachable code, possible misuse of comma operator, and one about a (not C99-compliant) over-length string. Most warnings are easily seen to be harmless (e.g., unreachable code depends on compile-time flags, and ambiguous macros likely depend on merging multiple files into one—but the various macro definitions are equivalent). Besides, I get the same warnings if I add suitable -W flags to sqlite-autoconf-3210000's Makefile, which otherwise builds cleanly. This gives me confidence that the warnings may indeed be ignored—although I am a bit scared of ignoring “implicit conversion loses integer precision” warnings: I'd like someone familiar with the code to confirm that that is no cause of concern. So, you may silence all the warnings by setting the following items in the target's build settings: Apple LLVM 9.0 - Warnings - All Languages - Implicit Conversion to 32 Bit Type: No - Suspicious Commas: No - Unreachable Code: No Apple LLVM 9.0 - Custom Compiler Flags - Other Warning Flags: -Wno-ambiguous-macro -Wno-overlength-strings To avoid missing potential problems in the rest of your code, I'd recommend suppressing the warnings only for the Release configuration and only for the specific target. Hope this may be helpful to others as well, Life. _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
