================ @@ -3478,6 +3478,10 @@ def err_format_attribute_result_not : Error<"function does not return %0">; def err_format_attribute_implicit_this_format_string : Error< "format attribute cannot specify the implicit this argument as the format " "string">; +def warn_missing_format_attribute : Warning< + "diagnostic behavior may be improved by adding the '%0' format " + "attribute to the declaration of %1">, + InGroup<DiagGroup<"missing-format-attribute">>, DefaultIgnore; ---------------- apple-fcloutier wrote:
Can you help me put in context how -Wmissing-format-attribute works with GCC and its relationship with -Wformat, -Wformat=2 and -Wformat-nonliteral? It's kind of a least favorite way forward to add new off-by-default diagnostics. Here's my thinking (before knowing how GCC deals with this): * Could -Wmissing-format-attribute be enabled by default and/or be part of -Wformat? (Do we need an adult to confirm the bar for adding on-by-default diagnostics? I think this should be OK given that this shouldn't have false positives at all.) * If -Wmissing-format-attribute cannot be enabled by default, what are our options for splitting the difference between it and -Wformat-nonliteral? Should -Wmissing-format-attribute be part of -Wformat-nonliteral so that users of -Wformat-nonliteral get it when possible? * In all cases, -Wformat-nonliteral always hitting when -Wmissing-format-attribute does is an overlook that we should address. https://github.com/llvm/llvm-project/pull/166738 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
