Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -fsyntax-only -verify -std=c17 %s // RUN: %clang_cc1 -fsyntax-only -verify -std=c18 %s // expected-no-diagnostics _Static_assert(__STDC_VERSION__ == 201710L, "Incorrect __STDC_VERSION__");