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| author | Paul Eggert <eggert@cs.ucla.edu> | 2017-09-26 16:31:57 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2017-09-26 16:36:43 -0700 |
| commit | 0e82fa34163dba21121e3a9cffa7f896c81c4d93 (patch) | |
| tree | 16c728aa616dae256d429060e257313dcfe4dbde /src/lisp.h | |
| parent | 98a37e60142340b9c2b4e6b17c373f4ae6a2d8b4 (diff) | |
| download | emacs-0e82fa34163dba21121e3a9cffa7f896c81c4d93.tar.gz | |
Avoid some unnecessary copying in Fformat etc.
This patch is just for performance; it should not affect behavior.
On my platform, it made the microbenchmark (format "%S" load-path)
run about 45% faster. It should also speed up calls like (message
"%s" STRING).
* src/callint.c (Fcall_interactively):
* src/dbusbind.c (XD_OBJECT_TO_STRING):
* src/editfns.c (Fmessage, Fmessage_box):
* src/xdisp.c (vadd_to_log, Ftrace_to_stderr):
Use styled_format instead of Fformat or Fformat_message,
to avoid unnecessary copying.
* src/editfns.c (styled_format): New arg NEW_RESULT.
All uses changed. Reuse an input string if it has the
right value and if !NEW_RESULT.
* src/lisp.h (style_format): New decl.
Diffstat (limited to 'src/lisp.h')
| -rw-r--r-- | src/lisp.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/lisp.h b/src/lisp.h index c5030824427..0c3ca3ae06b 100644 --- a/src/lisp.h +++ b/src/lisp.h @@ -3969,6 +3969,7 @@ extern _Noreturn void time_overflow (void); extern Lisp_Object make_buffer_string (ptrdiff_t, ptrdiff_t, bool); extern Lisp_Object make_buffer_string_both (ptrdiff_t, ptrdiff_t, ptrdiff_t, ptrdiff_t, bool); +extern Lisp_Object styled_format (ptrdiff_t, Lisp_Object *, bool, bool); extern void init_editfns (bool); extern void syms_of_editfns (void); |