diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-25 08:56:47 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2010-08-25 08:56:47 +0000 |
commit | 569d8219292fefe205979fd8ea951619316d4f72 (patch) | |
tree | 1d8e89c9d4ae792382f74cb2a6e2778075f0e3ea /array.c | |
parent | c6465aeeb153428057426663d51906052e39b36c (diff) | |
download | ruby-569d8219292fefe205979fd8ea951619316d4f72.tar.gz |
* array.c (rb_ary_sample): use frozen shared array to get rid of
reallocation.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29092 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'array.c')
-rw-r--r-- | array.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -3826,6 +3826,7 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary) rb_scan_args(argc, argv, "1", &nv); n = NUM2LONG(nv); if (n < 0) rb_raise(rb_eArgError, "negative sample number"); + RB_GC_GUARD(ary) = ary_make_shared(ary); ptr = RARRAY_PTR(ary); len = RARRAY_LEN(ary); if (n > len) n = len; @@ -3872,7 +3873,6 @@ rb_ary_sample(int argc, VALUE *argv, VALUE ary) VALUE *ptr_result; result = rb_ary_new4(len, ptr); ptr_result = RARRAY_PTR(result); - RB_GC_GUARD(ary); for (i=0; i<n; i++) { j = RAND_UPTO(len-i) + i; nv = ptr_result[j]; |