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-rw-r--r--libstdc++-v3/ChangeLog6
-rw-r--r--libstdc++-v3/include/bits/basic_string.h10
2 files changed, 13 insertions, 3 deletions
diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index cbae312..0654d76 100644
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,9 @@
+2004-04-19 Paolo Carlini <pcarlini@suse.de>
+
+ PR libstdc++/15002 (partial)
+ * include/bits/basic_string.h (_M_replace_aux, _M_replace_safe):
+ Special case __n2 == 1, not calling traits_type::assign/copy.
+
2004-04-17 Benjamin Kosnik <bkoz@redhat.com>
* include/bits/stl_bvector.h: Use _M_impl._M_start.
diff --git a/libstdc++-v3/include/bits/basic_string.h b/libstdc++-v3/include/bits/basic_string.h
index a33cdef..6837e01 100644
--- a/libstdc++-v3/include/bits/basic_string.h
+++ b/libstdc++-v3/include/bits/basic_string.h
@@ -1342,7 +1342,9 @@ namespace std
if (this->max_size() - (this->size() - __n1) < __n2)
__throw_length_error(__N("basic_string::_M_replace_aux"));
_M_mutate(__pos1, __n1, __n2);
- if (__n2)
+ if (__n2 == 1)
+ _M_data()[__pos1] = __c;
+ else if (__n2)
traits_type::assign(_M_data() + __pos1, __n2, __c);
return *this;
}
@@ -1352,7 +1354,9 @@ namespace std
size_type __n2)
{
_M_mutate(__pos1, __n1, __n2);
- if (__n2)
+ if (__n2 == 1)
+ _M_data()[__pos1] = *__s;
+ else if (__n2)
traits_type::copy(_M_data() + __pos1, __s, __n2);
return *this;
}
@@ -1960,7 +1964,7 @@ namespace std
* @param rhs Last string.
* @return New string with value of @a lhs followed by @a rhs.
*/
- template<typename _CharT, typename _Traits, typename _Alloc>
+ template<typename _CharT, typename _Traits, typename _Alloc>
basic_string<_CharT, _Traits, _Alloc>
operator+(const basic_string<_CharT, _Traits, _Alloc>& __lhs,
const basic_string<_CharT, _Traits, _Alloc>& __rhs)