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* array.c (rb_ary_zip): performance implement by using

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ALLOCA_N() to allocate tmp buffer.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42374 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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glass 2013-08-04 12:24:26 +00:00
parent 0d5ec8a346
commit 07e3b30c84
2 changed files with 10 additions and 5 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Sun Aug 4 21:08:29 2013 Masaki Matsushita <glass.saga@gmail.com>
* array.c (rb_ary_zip): performance implement by using
ALLOCA_N() to allocate tmp buffer.
Sun Aug 4 07:14:49 2013 Tanaka Akira <akr@fsij.org>
* README.EXT, README.EXT.ja: Mention rb_integer_pack and

10
array.c
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@ -3161,15 +3161,15 @@ rb_ary_zip(int argc, VALUE *argv, VALUE ary)
else
result = rb_ary_new2(len);
if (block_given && arity > 1) {
VALUE tmp = rb_ary_new2(argc+1);
if (block_given && arity > 1 && argc+1 < 0x100) {
VALUE *tmp = ALLOCA_N(VALUE, argc+1);
for (i=0; i<RARRAY_LEN(ary); i++) {
rb_ary_store(tmp, 0, RARRAY_AREF(ary, i));
tmp[0] = RARRAY_AREF(ary, i);
for (j=0; j<argc; j++) {
rb_ary_store(tmp, j+1, rb_ary_elt(argv[j], i));
tmp[j+1] = rb_ary_elt(argv[j], i);
}
rb_yield_values2(argc+1, RARRAY_RAWPTR(tmp));
rb_yield_values2(argc+1, tmp);
}
}
else {