adjusted includes based on include-what-you-use (#275)

firewave · web-flow · commit 3082bd70b8d2 · 2022-11-20T08:40:22.000+01:00
diff --git a/simplecpp.cpp b/simplecpp.cpp
@@ -24,13 +24,15 @@
 
 #include <algorithm>
 #include <climits>
+#include <cstddef>
+#include <cstdlib>
 #include <cstring>
 #include <ctime>
 #include <exception>
-#include <fstream>
+#include <fstream> // IWYU pragma: keep
 #include <iostream>
 #include <limits>
-#include <sstream>
+#include <sstream> // IWYU pragma: keep
 #include <stack>
 #include <stdexcept>
 #if __cplusplus >= 201103L
diff --git a/simplecpp.h b/simplecpp.h
@@ -20,7 +20,6 @@
 #define simplecppH
 
 #include <cctype>
-#include <cstddef>
 #include <cstring>
 #include <istream>
 #include <list>
