The -Wformat compiler warning option (“Typecheck calls to printf/scanf”)
complains about the use of NSIntegers as parameters to printf-style functions …
but only on iOS. (Or maybe only on 32-bit builds?) This is a PITA when
developing cross-platform code — I do most of my development targeting Mac OS
because it’s easier to run, but then I’ll break the build when I accidentally
do something like
NSInteger code = …..;
NSLog(@“Closed with code %ld”, code);
which compiles fine for Mac OS, but causes an error on iOS:
/Couchbase/CouchbaseLite/Source/ChangeTracker/CBLWebSocketChangeTracker.m:256:78:
error: values of type 'NSInteger' should not be used as format arguments; add
an explicit cast to 'long' instead [-Werror,-Wformat]
LogTo(ChangeTracker, @"%@: closed with code %ld, reason '%@'", self,
effectiveCode, reason);
~~~
^~~~~~~~~~~~~
(long)
I’ve got the exact same warning flags enabled for both platforms. Is there a
way I can enable this warning consistently in a build for any
platform/word-size?
(To be clear: I understand why this behaves differently, due to the [awful]
decision to make NSInteger different sizes in 32-bit vs 64-bit. But at a high
level it’s an inconsistent warning, when you have multiple platforms to build
for.)
—Jens _______________________________________________
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