commit 2025-08-25 20:27 add ZCEndian in ZCppMain/ZMainHead.H

ZCppMain/ZMainHead.H

@@ -671,6 +671,27 @@ namespace ZNsMain
     ///////////////////////////////////////////////////////////////////////////////*/
 
 
+    class ZCEndian
+    {
+    public:
+
+        static const unsigned int         SUI_Int  = 1;
+        static const unsigned char* const SPC_Char    ;
+
+        static const bool SB_IsBig    ;
+        static const bool SB_IsLittle ;
+
+    public:
+    };/*
+    class ZCEndian*/
+
+    const unsigned char* const ZCEndian::SPC_Char =
+        reinterpret_cast<const unsigned char*>(&ZCEndian::SUI_Int)  ;
+
+    const bool ZCEndian::SB_IsBig    = (int(ZCEndian::SPC_Char[0]) ==1 ) ;
+    const bool ZCEndian::SB_IsLittle = (int(ZCEndian::SPC_Char[0]) !=1 ) ;
+
+
     class ZCEmpty
     {
         /*///////////////////////////////////////////////////////////////////////////

ZCppMainTest/c++_test_000.cpp

@@ -0,0 +1,57 @@
+
+
+#include<iostream>
+
+
+using namespace std;
+
+
+int Main(int AI_ArgCnt=0, const char* APP_ArgVal[]=0)
+{
+    cout<<"Call Main()"<<endl;  return 0;
+}/*
+int Main(int AI_ArgCnt=0, const char* APP_ArgVal[]=0)*/
+
+
+int main(int AI_ArgCnt, char* APP_ArgVal[])
+{
+    return Main(AI_ArgCnt, APP_ArgVal);
+}/*
+int main(int AI_ArgCnt, char* APP_ArgVal[])*/
+
+
+/*################################################################################
+
+<EFBFBD><EFBFBD>  mingw <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+    g++ -o c++_test_000.exe   c++_test_000.cpp -I../
+
+<EFBFBD><EFBFBD>  linux <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
+
+    g++ -o c++_test_000.exe   c++_test_000.cpp -I../
+
+
+    sauron@q381-2673:/mnt/e/my_CPP/ZCpp/ZCppMainTest$ g++ -o c++_test_000.exe   c++_test_000.cpp -I../
+    c++_test_000.cpp: In function <20><>int main(int, char**)<29><>:
+    c++_test_000.cpp:18:28: error: invalid conversion from <20><>char**<2A><> to <20><>const char**<2A><> [-fpermissive]
+       18 |     return Main(AI_ArgCnt, APP_ArgVal);
+          |                            ^~~~~~~~~~
+          |                            |
+          |                            char**
+    c++_test_000.cpp:9:39: note:   initializing argument 2 of <20><>int Main(int, const char**)<29><>
+        9 | int Main(int AI_ArgCnt=0, const char* APP_ArgVal[]=0)
+          |                           ~~~~~~~~~~~~^~~~~~~~~~~~~~
+
+    Administrator@q381-2673 UCRT64 /e/my_CPP/ZCpp/ZCppMainTest
+    # date
+    Mon Aug 25 01:39:11 KST 2025
+
+    Administrator@q381-2673 UCRT64 /e/my_CPP/ZCpp/ZCppMainTest
+    # g++ --version
+    g++.exe (Rev2, Built by MSYS2 project) 13.2.0
+    Copyright (C) 2023 Free Software Foundation, Inc.
+    This is free software; see the source for copying conditions.  There is NO
+    warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+
+################################################################################*/