diff options
Diffstat (limited to 'src/emacs-module.h')
| -rw-r--r-- | src/emacs-module.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/emacs-module.h b/src/emacs-module.h index ea5de76e950..dce5301ab0f 100644 --- a/src/emacs-module.h +++ b/src/emacs-module.h @@ -37,7 +37,8 @@ extern "C" { /* Current environment. */ typedef struct emacs_env_25 emacs_env; -/* Opaque structure pointer representing an Emacs Lisp value. */ +/* Opaque pointer representing an Emacs Lisp value. + BEWARE: Do not assume NULL is a valid value! */ typedef struct emacs_value_tag *emacs_value; enum emacs_arity { emacs_variadic_function = -2 }; |