mirror/guile
mirror/guile
1
Fork 0
mirror of https://git.savannah.gnu.org/git/guile.git synced 2025-06-14 15:40:19 +02:00
Code Activity

srfi-1: Rewrite 'find' in Scheme.

Browse source 
This halves the wall-clock time of:

  guile -c '(use-modules (srfi srfi-1)) (define lst (make-list 100000000 1)) (find zero? lst)'

and yields an 18% speedup on:

  guile -c '(use-modules (srfi srfi-1)) (define lst (make-list 100000000 1)) (find (lambda (x) (= 2 x)) lst)'

* libguile/srfi-1.c (scm_srfi1_find): Remove.
* libguile/srfi-1.h (scm_srfi1_find): Likewise.
* module/srfi/srfi-1.scm (find): New procedure.
* doc/ref/srfi-modules.texi (SRFI-1 Searching): Adjust docstring.
This commit is contained in:
Ludovic Courtès 2020-06-17 16:59:50 +02:00
parent 2e2e13c40a
commit 0360843ace
4 changed files with 16 additions and 29 deletions
Download patch file Download diff file Expand all files Collapse all files

3
libguile/srfi-1.h
View file

@ -1,5 +1,5 @@
/* srfi-1.h --- SRFI-1 procedures for Guile
Copyright 2002-2003,2005-2006,2010-2011,2018
Copyright 2002-2003,2005-2006,2010-2011,2018,2020
Free Software Foundation, Inc.
This file is part of Guile.
@ -33,7 +33,6 @@ SCM_INTERNAL SCM scm_srfi1_delete (SCM x, SCM lst, SCM pred);
SCM_INTERNAL SCM scm_srfi1_delete_x (SCM x, SCM lst, SCM pred);
SCM_INTERNAL SCM scm_srfi1_delete_duplicates (SCM lst, SCM pred);
SCM_INTERNAL SCM scm_srfi1_delete_duplicates_x (SCM lst, SCM pred);
SCM_INTERNAL SCM scm_srfi1_find (SCM pred, SCM lst);
SCM_INTERNAL SCM scm_srfi1_find_tail (SCM pred, SCM lst);
SCM_INTERNAL SCM scm_srfi1_length_plus (SCM lst);
SCM_INTERNAL SCM scm_srfi1_lset_difference_x (SCM equal, SCM lst, SCM rest);