Have basic_istream::read call sgetn intead of sbumpc individual characters. This addresses http://llvm.org/bugs/show_bug.cgi?id=15427. git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@176573 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/istream b/include/istream index 3979e14..e484571 100644 --- a/include/istream +++ b/include/istream
@@ -1216,16 +1216,9 @@ sentry __sen(*this, true); if (__sen) { - for (; __gc_ < __n; ++__gc_) - { - typename traits_type::int_type __i = this->rdbuf()->sbumpc(); - if (traits_type::eq_int_type(__i, traits_type::eof())) - { - this->setstate(ios_base::failbit | ios_base::eofbit); - break; - } - *__s++ = traits_type::to_char_type(__i); - } + __gc_ = this->rdbuf()->sgetn(__s, __n); + if (__gc_ != __n) + this->setstate(ios_base::failbit | ios_base::eofbit); } else this->setstate(ios_base::failbit); 