Function ExternSTLOStreamStr

test/externref/ExternrefTest.cpp:193–204

Host function to output std::string through std::ostream

// Host function to output std::string through std::ostream
WasmEdge_Result ExternSTLOStreamStr(void *,
                                    const WasmEdge_CallingFrameContext *,
                                    const WasmEdge_Value *In,
                                    WasmEdge_Value *) {
  // Function type: {externref, externref} -> {}
  void *Ptr0 = WasmEdge_ValueGetExternRef(In[0]);
  void *Ptr1 = WasmEdge_ValueGetExternRef(In[1]);
  std::ostream &RefOS = *reinterpret_cast<std::ostream *>(Ptr0);
  std::string &RefStr = *reinterpret_cast<std::string *>(Ptr1);
  RefOS << RefStr;
  return WasmEdge_Result_Success;
}

// Host function to output uint32_t through std::ostream
WasmEdge_Result ExternSTLOStreamU32(void *,