added missing `sstream` includes (#4381)

cli/cmdlineparser.cpp

@@ -40,6 +40,7 @@
 #include <iostream>
 #include <list>
 #include <set>
+#include <sstream>
 #include <utility>
 
 #ifdef HAVE_RULES

cli/cppcheckexecutor.cpp

@@ -48,6 +48,7 @@
 #include <iostream>
 #include <list>
 #include <memory>
+#include <sstream>
 #include <utility>
 #include <vector>
 

cli/processexecutor.cpp

@@ -39,6 +39,7 @@
 #include <functional>
 #include <iostream>
 #include <list>
+#include <sstream>
 #include <sys/select.h>
 #include <sys/wait.h>
 #include <unistd.h>

lib/checkcondition.cpp

@@ -39,6 +39,7 @@
 #include <memory>
 #include <ostream>
 #include <set>
+#include <sstream>
 #include <utility>
 #include <vector>
 

lib/checkfunctions.cpp

@@ -32,6 +32,7 @@
 
 #include <iomanip>
 #include <ostream>
+#include <sstream>
 #include <unordered_map>
 #include <vector>
 

lib/checkio.cpp

@@ -35,6 +35,7 @@
 #include <map>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <unordered_set>
 #include <utility>
 #include <vector>

lib/checkother.cpp

@@ -41,6 +41,7 @@
 #include <memory>
 #include <ostream>
 #include <set>
+#include <sstream>
 #include <utility>
 #include <numeric>
 

lib/checktype.cpp

@@ -32,6 +32,7 @@
 #include <cmath>
 #include <list>
 #include <ostream>
+#include <sstream>
 #include <vector>
 
 //---------------------------------------------------------------------------

lib/checkunusedfunctions.cpp

@@ -36,7 +36,7 @@
 #include <cstring>
 #include <istream>
 #include <memory>
-
+#include <sstream>
 #include <utility>
 #include <vector>
 

lib/clangimport.cpp

@@ -37,6 +37,7 @@
 #include <map>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <stack>
 #include <string>
 #include <utility>

lib/cppcheck.cpp

@@ -49,6 +49,7 @@
 #include <memory>
 #include <new>
 #include <set>
+#include <sstream>
 #include <stdexcept>
 #include <string>
 #include <utility>

lib/ctu.cpp

@@ -34,6 +34,7 @@
 #include <cstring>
 #include <iterator>  // back_inserter
 #include <ostream>
+#include <sstream>
 #include <utility>
 
 #include <tinyxml2.h>

lib/errorlogger.cpp

@@ -33,6 +33,7 @@
 #include <cstring>
 #include <iomanip>
 #include <memory>
+#include <sstream>
 #include <string>
 #include <utility>
 

lib/importproject.cpp

@@ -32,7 +32,7 @@
 #include <fstream> // IWYU pragma: keep
 #include <iostream>
 #include <iterator>
-
+#include <sstream>
 #include <utility>
 
 #include <tinyxml2.h>

lib/library.cpp

@@ -34,6 +34,7 @@
 #include <iosfwd>
 #include <list>
 #include <memory>
+#include <sstream>
 #include <stack>
 #include <string>
 

lib/mathlib.cpp

@@ -27,6 +27,7 @@
 #include <exception>
 #include <limits>
 #include <locale>
+#include <sstream>
 #include <stdexcept>
 
 #include <simplecpp.h>

lib/preprocessor.cpp

@@ -31,6 +31,7 @@
 #include <cstddef>
 #include <iterator> // back_inserter
 #include <memory>
+#include <sstream>
 #include <utility>
 
 #include <simplecpp.h>

lib/summaries.cpp

@@ -28,6 +28,7 @@
 #include <algorithm>
 #include <fstream>
 #include <map>
+#include <sstream>
 #include <vector>
 
 

lib/suppressions.cpp

@@ -31,6 +31,7 @@
 #include <cstdlib>
 #include <cstring>
 #include <functional> // std::bind, std::placeholders
+#include <sstream>
 
 #include <tinyxml2.h>
 

lib/symboldatabase.cpp

@@ -41,6 +41,7 @@
 #include <iomanip>
 #include <iostream>
 #include <limits>
+#include <sstream>
 #include <stack>
 #include <string>
 #include <type_traits>

lib/templatesimplifier.cpp

@@ -32,6 +32,7 @@
 #include <iostream>
 #include <map>
 #include <memory>
+#include <sstream>
 #include <stack>
 #include <utility>
 

lib/token.cpp

@@ -40,6 +40,7 @@
 #include <iterator>
 #include <map>
 #include <set>
+#include <sstream>
 #include <stack>
 #include <unordered_set>
 #include <utility>

lib/tokenize.cpp

@@ -44,6 +44,7 @@
 #include <exception>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <stack>
 #include <stdexcept>
 #include <type_traits>

lib/valueflow.cpp

@@ -117,6 +117,7 @@
 #include <map>
 #include <memory>
 #include <set>
+#include <sstream>
 #include <string>
 #include <type_traits>
 #include <unordered_map>