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author | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-01-07 22:57:00 +0000 |
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committer | akr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2008-01-07 22:57:00 +0000 |
commit | 5b944457d1383d9e3183fae5a400b75c2948c468 (patch) | |
tree | aec504466ed324528f72d21ea27f8a84c30c1804 /string.c | |
parent | bf10c140be1c464cf53256bb077aae750936e10e (diff) | |
download | ruby-5b944457d1383d9e3183fae5a400b75c2948c468.tar.gz ruby-5b944457d1383d9e3183fae5a400b75c2948c468.tar.xz ruby-5b944457d1383d9e3183fae5a400b75c2948c468.zip |
* string.c (rb_str_buf_append): fix append itself.
git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@14941 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'string.c')
-rw-r--r-- | string.c | 8 |
1 files changed, 7 insertions, 1 deletions
@@ -1166,7 +1166,13 @@ rb_enc_str_buf_cat(VALUE str, const char *ptr, long len, rb_encoding *ptr_enc) VALUE rb_str_buf_append(VALUE str, VALUE str2) { - int str2_cr = ENC_CODERANGE(str2); + int str2_cr; + + if (str == str2) { + str2 = rb_str_dup(str2); + } + + str2_cr = ENC_CODERANGE(str2); rb_enc_cr_str_buf_cat(str, RSTRING_PTR(str2), RSTRING_LEN(str2), ENCODING_GET(str2), str2_cr, &str2_cr); |