1 // RUN: %llvmgxx %s -S -O2 -o - | not grep {_ZNSs12_S_constructIPKcEEPcT_S3_RKSaIcESt20forward_iterator_tag} 2 // PR4262 3 4 // The "basic_string" extern template instantiation declaration is supposed to 5 // suppress the implicit instantiation of non-inline member functions. Make sure 6 // that we suppress the implicit instantiation of non-inline member functions 7 // defined out-of-line. That we aren't instantiating the basic_string 8 // constructor when we shouldn't be. Such an instantiation forces the implicit 9 // instantiation of _S_construct<const char*>. Since _S_construct is a member 10 // template, it's instantiation is *not* suppressed (despite being in 11 // basic_string<char>), so we would emit it as a weak definition. 12 13 #include <stdexcept> 14 15 void dummysymbol() { 16 throw(std::runtime_error("string")); 17 } 18