Remove unused includes (#1604)

* Remove unused includes

* Fix

* Add back `cstring` where needed

* Remove unused includes from examples and tutorials

* Add `cstdlib`

* Remove unused includes for DPDK

* Remove unused includes for PF_RING

* Remove one more unused include for PF_RING

Author: seladb

Common++/src/GeneralUtils.cpp

@@ -4,8 +4,7 @@
 #include "Logger.h"
 #include <sstream>
 #include <iomanip>
-#include <string.h>
-#include <stdlib.h>
+#include <cstring>
 
 namespace pcpp
 {

Common++/src/IpAddress.cpp

@@ -1,11 +1,8 @@
 #define LOG_MODULE CommonLogModuleIpUtils
 
 #include <algorithm>
-#include <cmath>
-#include <errno.h>
 #include <sstream>
 #include <stdexcept>
-#include <stdint.h>
 #include <bitset>
 #include "Logger.h"
 #include "IpUtils.h"

Common++/src/IpUtils.cpp

@@ -2,8 +2,7 @@
 
 #include "IpUtils.h"
 #include "Logger.h"
-#include <string.h>
-#include <stdio.h>
+#include <cstring>
 #include <stdexcept>
 #ifndef NS_INADDRSZ
 #	define NS_INADDRSZ 4

Common++/src/MacAddress.cpp

@@ -1,5 +1,3 @@
-#include <stdio.h>
-
 #include "MacAddress.h"
 
 namespace pcpp

Common++/src/SystemUtils.cpp

@@ -9,9 +9,8 @@
 #include <array>
 #include <iostream>
 #include <mutex>
-#include <signal.h>
-#include <stdio.h>
-#include <string.h>
+#include <cstring>
+#include <csignal>
 #include <sys/stat.h>
 #if defined(__APPLE__)
 #	include <mach/clock.h>

Common++/src/TablePrinter.cpp

@@ -3,7 +3,6 @@
 #include <iomanip>
 #include <sstream>
 #include <iostream>
-#include <iterator>
 #include <numeric>
 #include <utility>
 #include "TablePrinter.h"

Examples/ArpSpoofing/main.cpp

@@ -1,8 +1,5 @@
-#include <stdio.h>
-#include <stdlib.h>
 #include <iostream>
 #include <fstream>
-#include <memory>
 #include <MacAddress.h>
 #include <IpAddress.h>
 #include <PcapPlusPlusVersion.h>
@@ -11,7 +8,6 @@
 #include <PcapLiveDevice.h>
 #include <EthLayer.h>
 #include <ArpLayer.h>
-#include <Logger.h>
 #include <getopt.h>
 
 #define EXIT_WITH_ERROR(reason)                                                                                        \

Examples/Arping/main.cpp

@@ -5,7 +5,6 @@
  * response. Its basic input is the target IP address and the interface name/IP to send the ARP request from
  */
 
-#include <stdlib.h>
 #include <iostream>
 #include <MacAddress.h>
 #include <IpAddress.h>

Examples/DNSResolver/main.cpp

@@ -1,4 +1,3 @@
-#include <stdlib.h>
 #include <iostream>
 #include "PcapPlusPlusVersion.h"
 #include "PcapLiveDevice.h"

Examples/DpdkBridge/Common.h

@@ -11,7 +11,6 @@
 #include <iomanip>
 #include <iostream>
 #include <sstream>
-#include <stdlib.h>
 
 /**
  * Macros for exiting the application with error