printf() something in Gecko CPP

gecko-printf.cpp

///////////////////////////
nsAutoString value;
input->GetTextValue(value);
printf("****************************************************************************************\n");
printf("%s\n", NS_ConvertUTF16toUTF8(value).get());
printf("****************************************************************************************\n");
printf("%s\n", NS_ConvertUTF16toUTF8(mSearchString).get());
printf("****************************************************************************************\n");

///////////////////////////
nsAutoCString tag;
elm->NodeInfo()->NameAtom()->ToUTF8String(tag);
printf("%s\n", tag.get());

//////////////////////
printf("uri: %s", aDocumentNode->GetDocumentURI()->GetSpecOrDefault().get());