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| author | Paolo Carlini <pcarlini@suse.de> | 2005-11-03 13:13:21 +0000 |
|---|---|---|
| committer | Paolo Carlini <paolo@gcc.gnu.org> | 2005-11-03 13:13:21 +0000 |
| commit | f9c4ee6d100ed11255aa7177c3b8c1a25150b1c4 (patch) | |
| tree | 8e4ed692c702645120b2a07f7a39c193cad8b679 | |
| parent | 02f1d17cccdf7feac9e7a6515934b396c82e2b02 (diff) | |
| download | gcc-f9c4ee6d100ed11255aa7177c3b8c1a25150b1c4.zip gcc-f9c4ee6d100ed11255aa7177c3b8c1a25150b1c4.tar.gz gcc-f9c4ee6d100ed11255aa7177c3b8c1a25150b1c4.tar.bz2 | |
sso_string_base.h (__sso_string_base<>::_M_swap): Change the various traits_type::copy call to always copy the entire local buffer...
2005-11-03 Paolo Carlini <pcarlini@suse.de>
* include/ext/sso_string_base.h (__sso_string_base<>::_M_swap):
Change the various traits_type::copy call to always copy the
entire local buffer; return early and don't do a full swap on
the lengths for two common cases; change two _S_copy to plain
traits_type::copy.
From-SVN: r106431
| -rw-r--r-- | libstdc++-v3/ChangeLog | 8 | ||||
| -rw-r--r-- | libstdc++-v3/include/ext/sso_string_base.h | 25 |
2 files changed, 23 insertions, 10 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog index 0a779b6..ab1f558 100644 --- a/libstdc++-v3/ChangeLog +++ b/libstdc++-v3/ChangeLog @@ -1,3 +1,11 @@ +2005-11-03 Paolo Carlini <pcarlini@suse.de> + + * include/ext/sso_string_base.h (__sso_string_base<>::_M_swap): + Change the various traits_type::copy call to always copy the + entire local buffer; return early and don't do a full swap on + the lengths for two common cases; change two _S_copy to plain + traits_type::copy. + 2005-11-02 Thomas Kho <tkho@ucla.edu> PR libstdc++/23425 diff --git a/libstdc++-v3/include/ext/sso_string_base.h b/libstdc++-v3/include/ext/sso_string_base.h index f9b3233..c37bd88c 100644 --- a/libstdc++-v3/include/ext/sso_string_base.h +++ b/libstdc++-v3/include/ext/sso_string_base.h @@ -255,29 +255,34 @@ namespace __gnu_cxx { _CharT __tmp_data[_S_local_capacity + 1]; traits_type::copy(__tmp_data, __rcs._M_local_data, - __rcs._M_length() + 1); + _S_local_capacity + 1); traits_type::copy(__rcs._M_local_data, _M_local_data, - _M_length() + 1); + _S_local_capacity + 1); traits_type::copy(_M_local_data, __tmp_data, - __rcs._M_length() + 1); + _S_local_capacity + 1); } else if (__rcs._M_length()) { traits_type::copy(_M_local_data, __rcs._M_local_data, - __rcs._M_length() + 1); - traits_type::assign(__rcs._M_local_data[0], _CharT()); + _S_local_capacity + 1); + _M_length(__rcs._M_length()); + __rcs._M_set_length(0); + return; } else if (_M_length()) { traits_type::copy(__rcs._M_local_data, _M_local_data, - _M_length() + 1); - traits_type::assign(_M_local_data[0], _CharT()); + _S_local_capacity + 1); + __rcs._M_length(_M_length()); + _M_set_length(0); + return; } } else { const size_type __tmp_capacity = __rcs._M_allocated_capacity; - _S_copy(__rcs._M_local_data, _M_local_data, _M_length() + 1); + traits_type::copy(__rcs._M_local_data, _M_local_data, + _S_local_capacity + 1); _M_data(__rcs._M_data()); __rcs._M_data(__rcs._M_local_data); _M_capacity(__tmp_capacity); @@ -287,8 +292,8 @@ namespace __gnu_cxx const size_type __tmp_capacity = _M_allocated_capacity; if (__rcs._M_is_local()) { - _S_copy(_M_local_data, __rcs._M_local_data, - __rcs._M_length() + 1); + traits_type::copy(_M_local_data, __rcs._M_local_data, + _S_local_capacity + 1); __rcs._M_data(_M_data()); _M_data(_M_local_data); } |