diff options
| author | Kim F. Storm <storm@cua.dk> | 2004-05-17 22:46:34 +0000 |
|---|---|---|
| committer | Kim F. Storm <storm@cua.dk> | 2004-05-17 22:46:34 +0000 |
| commit | 002571ddc7980f54ec0cd5a8c42adff41f3b5f76 (patch) | |
| tree | 4bb10a110e22004430367e5eaf730939165b2bc4 /src/buffer.h | |
| parent | ff999ce63e64526f244a54b8016dd68d5f748dc7 (diff) | |
| download | emacs-002571ddc7980f54ec0cd5a8c42adff41f3b5f76.tar.gz | |
(GET_OVERLAYS_AT): New macro.
Diffstat (limited to 'src/buffer.h')
| -rw-r--r-- | src/buffer.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/buffer.h b/src/buffer.h index e2205a916e6..b5227cb9981 100644 --- a/src/buffer.h +++ b/src/buffer.h @@ -823,6 +823,25 @@ extern void buffer_slot_type_mismatch P_ ((int)); extern void fix_overlays_before P_ ((struct buffer *, EMACS_INT, EMACS_INT)); extern void mmap_set_vars P_ ((int)); +/* Get overlays at POSN into array OVERLAYS with NOVERLAYS elements. + If NEXTP is non-NULL, return next overlay there. + See overlay_at arg CHANGE_REQ for meaning of CHRQ arg. */ + +#define GET_OVERLAYS_AT(posn, overlays, noverlays, nextp, chrq) \ + do { \ + int maxlen = 40; \ + overlays = (Lisp_Object *) alloca (maxlen * sizeof (Lisp_Object)); \ + noverlays = overlays_at (posn, 0, &overlays, &maxlen, \ + nextp, NULL, chrq); \ + if (noverlays > maxlen) \ + { \ + maxlen = noverlays; \ + overlays = (Lisp_Object *) alloca (maxlen * sizeof (Lisp_Object)); \ + noverlays = overlays_at (posn, 0, &overlays, &maxlen, \ + nextp, NULL, chrq); \ + } \ + } while (0) + EXFUN (Fbuffer_name, 1); EXFUN (Fget_file_buffer, 1); EXFUN (Fnext_overlay_change, 1); |