dongjianqiang2 wrote:
> ```
> enum class test
> {
> err1,
> err2,
> ok
> };
>
> int check_err (test v)
> {
> switch (v)
> {
> case test::err1:
> return 1;
> case test::err2:
> return 2;
> case test::ok:
> break;
> }
> return 0;
> }
> ```
>
> report: main.cxx:40:3: error: 'switch' missing 'default' label
> [-Werror,-Wswitch-default]
>
> how to solve for enum class? try to build libfmt project with
> fmt/include/fmt/format.h:3878:3: error: 'switch' missing 'default' label
> [-Werror,-Wswitch-default] and other errors
Hi, -Wswitch-default is a warning option on switch which don't have the default
branch, the option is disabled by default, You can check whether
-Wswitch-default is added in the build script.
https://github.com/llvm/llvm-project/pull/73077
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