keywords: C++, std_Binderstd_Unforced, sockaddr, int __cdecl invoke_main(void)

unresolved external symbol main referenced in function “int __cdecl invoke_main(void)”

Error:

MSVCRTD.lib(exe_main.obj): Error LNK2019 : unresolved external symbol main referenced in function "int __cdecl invoke_main(void)" (?invoke_main@@YAHXZ)

Solution:
Add /subsystem:windows:

#ifdef _WIN32
#pragma comment(linker, "/subsystem:windows")
#include <windows.h>
#endif
cannot convert from ‘std::_Binder’

Error:

Error C2440 : 'initializing': cannot convert from 'std::_Binder<std::_Unforced,int &,sockaddr *,size_t>' to 'int'

Solution:
Give a global function symbol.

int rs = ::bind(ServerSocket, (sockaddr*)&oAddr, sizeof(oAddr));
Failed to create virtual memory for PCH

Error:

c1xx: Error C3859 : Failed to create virtual memory for PCH
  c1xx: note: the system returned code 1455: The paging file is too small for this operation to complete.
  c1xx: note: please visit https://aka.ms/pch-help for more details
c1xx: Error C1076 : compiler limit: internal heap limit reached

Solution:
Enable virtualization option (Intel VT or AMD SVM) in the BIOS.
e.g. for AMD CPU, Overclocking -> Advanced CPU Configuration -> Enable SVM Mode.

Origin:
https://docs.microsoft.com/en-us/answers/questions/361265/failed-to-create-virtual-memory-for-pch.html

attempting to reference a deleted function

Error:

Reference C2280 : compiler has generated 'RecvBuf::operator =' here

Caused by:

class A
{
public:
   // explicit
   A(){}
   A(A &&){}

   // implicit
   A(const A&) = delete;
   A& operator=(const A&) = delete;
};

Solution:

A(const A&) = default;
A& operator=(const A&) = default;

C++ Compiler Error C2280 “attempting to reference a deleted function”
https://stackoverflow.com/a/31266254/1645289

CMake Issues

No CMAKE_C_COMPILER could be found

Building error:

CMake error at CMakeLists.txt:30 (project): No CMAKE_C_COMPILER could be found
CMake error at CMakeLists.txt:30 (project): No CMAKE_CXX_COMPILER could be found

Solution:
Mac OS:

sudo xcode-select --reset

Windows:

call "C:\Program_Filesx86\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"

Reference:
https://stackoverflow.com/a/46906065/1645289

Unknown CMake command “FetchContent_Declare”

Building error:

CMake Error at CMakeLists.txt:4 (FetchContent_Declare):
Unknown CMake command “FetchContent_Declare”

Solution:
add include(FetchContent) in CMakeLists.txt

include(FetchContent)

Origin:
https://discourse.cmake.org/t/fetchcontent-declare-not-recognized/443

error C2220: the following warning is treated as an error

Error on building:

error C2220: the following warning is treated as an error

Solution:
set C_FLAGS_WARNINGS in CMakeLists.txt:

set(C_FLAGS_WARNINGS "/W4 /WX-")
fatal error LNK1104: cannot open file ‘kernel32.lib’

Error on building in cmake:

fatal error LNK1104: cannot open file 'kernel32.lib'

Solution:
Execute Cross Tools Command Prompt of Visual Studio firstly:

call "C:\Program_Filesx86\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvars64.bat"

“Trying to predict the future is like trying to drive down a country road at night with no lights while looking out the back window. ” ― Peter Drucker