Visual Studio displays error "a declaration cannot have a label" but the project still compiles

Question

I've made the following MRE to represent the problem:

typedef struct {
    char data[64];
} Message;

int main()
{
    int type = 1;
    switch (type)
    {
    case 1:
        Message m = { "hello world" };
        printf("%s\n", m.data);

        break;
    default:
        break;
    }

    return 0;
}

The IDE underlines Message in red and displays an error "Error (active) E1072: a declaration cannot have a label", but the build succeeds and the program runs. Why is that and/or how can I solve the error?

I'm using Microsoft Visual Studio Community 2022 (64-bit), version 17.9.1

Answer 1

As suggested by Ted Lyngmo in the comments section, the simplest solution is to surround switch declarations with curly brackets:

switch (type)
{
case 1:
{
    Message m = { "hello world" };
    printf("%s\n", m.data);

    break;
}
default:
    break;
}