"Hargett, Matt" <matt.hargett@xxxxxxxxxxxx> writes: > You're correct, of course. Unfortunately, it only tells me "[enabled by default]", rather than a specific option, so I had to go hunting for warnings that sounded relevant. Is it a bug that GCC didn't tell me what specific option enabled the warning? Or, is it a bug/missing feature that it's an intrinsic warning that can't ever be disabled? The latter. There is no way to disable the warning. > Do you know what option and/or pragma *would* disable the specific warning mentioned above on the code previously sent? I tried -Wno-conversion, and disabling Wconversion via pragma, along with several others. I was hoping for help from gcc-help, after all :) There isn't one. Other than -w, which disables all warnings. > Obviously. In the real example, this is an issue in a variadic argument macro expansion, where there doesn't appear to be a way to explicitly cast each of the individual arguments supplied (beyond the the first) to an intptr_t. Since intptr_t is the same size as pointer on any platform that supports intptr_t, and seems to be generally meant for exactly this scenario, I'm not sure it's useful for GCC to warn when converting pointers/ints to/from intptr_t. It's always useful to warn about implicitly converting from an integer to a pointer, or vice-versa. That is almost always a mistake. I understand that your specific case may be the rare exception, although without seeing the code I don't know why your macro can't add the cast. Ian
