resize compatible with gcc4.x (qicosmos#418)

helintongh · Oct 9, 2023 · 2422dfe · 2422dfe
1 parent 2f8d126
commit 2422dfe
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/include/cinatra/string_resize.hpp b/include/cinatra/string_resize.hpp
@@ -24,15 +24,24 @@ class string_thief {
   friend void string_set_length_hacker(std::string& self, std::size_t sz) {
 #if defined(_MSVC_STL_VERSION)
     (self.*func_ptr)._Myval2._Mysize = sz;
+#else
+#if (_GLIBCXX_USE_CXX11_ABI == 0) && defined(__GLIBCXX__)
+    (self.*func_ptr)()->_M_set_length_and_sharable(sz);
 #else
     (self.*func_ptr)(sz);
+#endif
 #endif
   }
 };
 
 #if defined(__GLIBCXX__)  // libstdc++
+#if (_GLIBCXX_USE_CXX11_ABI == 0)
+template class string_thief<decltype(&std::string::_M_rep),
+                            &std::string::_M_rep>;
+#else
 template class string_thief<decltype(&std::string::_M_set_length),
                             &std::string::_M_set_length>;
+#endif
 #elif defined(_LIBCPP_VERSION)
 template class string_thief<decltype(&std::string::__set_size),
                             &std::string::__set_size>;