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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 | fc5a26c2d41fade0771217e5b8ba257249db5251 (patch) | |
tree | aec504466ed324528f72d21ea27f8a84c30c1804 /string.c | |
parent | f07c8e6413f6f345f0520de75c82cc86d58fceb1 (diff) | |
download | ruby-fc5a26c2d41fade0771217e5b8ba257249db5251.tar.gz |
* string.c (rb_str_buf_append): fix append itself.
git-svn-id: svn+ssh://ci.ruby-lang.org/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); |