/learn/overview/15-errors-switch gives "no member named 'main'"

[softmoth]

An example in the Overview page is meant to show how switch requires exhaustive error checks. Instead, it shows that a main function is required.

https://ziglang.org/learn/overview/ (search for 15-errors-switch)

Suggested fix is to add a main function to the example source so that the intended error message (related to an unhandled error, I presume) is demonstrated.

[rohlem]

The source file contains a test declaration, so either its code should be moved to pub fn main, or the tested command should be zig test instead of zig build-exe.