Fork channel

Create a new channel as a copy of main.

Rename channel

Rename main to:

Delete channel

Delete main? This cannot be undone.

diag_pragma.h
#define DIAG_PRAGMA_MACRO 1

#pragma clang diagnostic ignored "-Wparentheses"

#ifdef __cplusplus
template<typename T> const char *f(T t) {
  return "foo" + t;
}
#pragma clang diagnostic ignored "-Wstring-plus-int"
template<typename T> const char *g(T t) {
  return "foo" + t;
}
#endif