Jeffrey Walton wrote: > When Linux/Unix folks turn off > -Wconversion, what do they use to find the bad conversions? The projects I normally work with don't use any automated tools. Instead, code is written in such a way that bad conversions are unlikely to happen. For example, the Emacs developers avoid using unsigned types. This avoids these bad conversions. The coreutils developers write their code carefully. Which they have to do anyway, for reasons that should be obvious. This also works reasonably well. Well enough so that almost all the bad-conversion warnings are bogus, anyway. I just now compiled coreutils-8.21 with -Wconversion, got 1845 warnings, looked at the first 10, found that they were all bogus, and gave up. In one example, the code subtracted two pointers that were into the same array and stored the result into a size_t variable, and the compiler warned about conversion from ptrdiff_t to size_t. Which is a totally bogus warning. It's not worth my (or anybody else's) time to wade through all those bogus messages. We have lots better ways to find bugs in coreutils than that. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf
