yasnippet-snippets/snippets/cc-mode/case

# -*- mode: snippet -*-
# name: case : {...}
# key: case
# expand-env: ((yas-also-auto-indent-first-line t))
# --
case ${2:constexpr}:${3: \{}
    $0
    break;
${3:$(if (string-match "\{" yas-text) "\}" "")}