Follow

Keep Up to Date with the Most Important News

By pressing the Subscribe button, you confirm that you have read and are agreeing to our Privacy Policy and Terms of Use
Follow
Facebook Twitter Instagram Youtube
Contact

c++ program compilation error undefined references using MinGW

byMR
June 6, 2022

sorry if my problem looks ridiculous because of the lack of knowledge of the compiler.
anyway, I have a problem I cannot compile using g++ or gcc.
I cannot find the problem in my code after I test it on https://www.onlinegdb.com/ and it seems to output the answer I wanted but when I compile it on my Mingw it trows an error

my MinGW version: 8.1.0

here’s my code

MEDevel.com: Open-source for Healthcare and Education

Collecting and validating open-source software for healthcare, education, enterprise, development, medical imaging, medical records, and digital pathology.

Visit Medevel 

    #include <iostream>

int main(){

    class programmers{
        public:
        std::string stack = "Unknown";
        char rank = 'X';

        programmers(std::string x, char y){
            stack = x;
            rank = y;
         
        }
    };

    programmers programmer("Fullstack", 'S');

    std::cout << "This Programmer's Stack is : " << programmer.stack
    << std::endl << "and have an " << programmer.rank << " Rank";
    return 0;
}

here’s the compilation log from the stderr using g++ main.cpp test.exe &> outputdebug.txt

C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: Dwarf Error: Could not find abbrev number 3926.
test.exe:crtexe.c:(.text+0x4b0): multiple definition of `WinMainCRTStartup'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.text+0x4b0): first defined here
test.exe:crtexe.c:(.text+0x4e0): multiple definition of `mainCRTStartup'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.text+0x4e0): first defined here
test.exe:crtexe.c:(.text+0x510): multiple definition of `atexit'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.text+0x510): first defined here
test.exe:cygming-crtbegin.c:(.text+0x530): multiple definition of `__gcc_register_frame'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/crtbegin.o:cygming-crtbegin.c:(.text+0x0): first defined here
test.exe:cygming-crtbegin.c:(.text+0x540): multiple definition of `__gcc_deregister_frame'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/crtbegin.o:cygming-crtbegin.c:(.text+0x10): first defined here
test.exe:main.cpp:(.text+0x550): multiple definition of `main'
C:\Users\lenovo\AppData\Local\Temp\cccop8R3.o:main.cpp:(.text+0xcf): first defined here
test.exe:crtexe.c:(.rdata+0x3c0): multiple definition of `.refptr.__native_startup_state'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__native_startup_state[.refptr.__native_startup_state]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x490): multiple definition of `.refptr.mingw_initltsdyn_force'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initltsdyn_force[.refptr.mingw_initltsdyn_force]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x370): multiple definition of `.refptr.__imp___initenv'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__imp___initenv[.refptr.__imp___initenv]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x440): multiple definition of `.refptr._matherr'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._matherr[.refptr._matherr]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x4a0): multiple definition of `.refptr.mingw_initltssuo_force'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initltssuo_force[.refptr.mingw_initltssuo_force]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x410): multiple definition of `.refptr._dowildcard'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._dowildcard[.refptr._dowildcard]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x470): multiple definition of `.refptr.mingw_initcharmax'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initcharmax[.refptr.mingw_initcharmax]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3a0): multiple definition of `.refptr.__mingw_oldexcpt_handler'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__mingw_oldexcpt_handler[.refptr.__mingw_oldexcpt_handler]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3f0): multiple definition of `.refptr.__xi_a'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xi_a[.refptr.__xi_a]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x450): multiple definition of `.refptr._newmode'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._newmode[.refptr._newmode]+0x0): first defined here
test.exe:crtexe.c:(.CRT+0x8): multiple definition of `mingw_pcppinit'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.CRT$XCAA+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x480): multiple definition of `.refptr.mingw_initltsdrot_force'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initltsdrot_force[.refptr.mingw_initltsdrot_force]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3b0): multiple definition of `.refptr.__native_startup_lock'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__native_startup_lock[.refptr.__native_startup_lock]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x350): multiple definition of `.refptr.__dyn_tls_init_callback'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__dyn_tls_init_callback[.refptr.__dyn_tls_init_callback]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x310): multiple definition of `.refptr._ZSt4cout'
C:\Users\lenovo\AppData\Local\Temp\cccop8R3.o:main.cpp:(.rdata$.refptr._ZSt4cout[.refptr._ZSt4cout]+0x0): first defined here
test.exe:crtexe.c:(.data+0x0): multiple definition of `__mingw_winmain_nShowCmd'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.data+0x0): first defined here
test.exe:crtexe.c:(.CRT+0x20): multiple definition of `mingw_pcinit'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.CRT$XIAA+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x430): multiple definition of `.refptr._gnu_exception_handler'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._gnu_exception_handler[.refptr._gnu_exception_handler]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x460): multiple definition of `.refptr.mingw_app_type'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_app_type[.refptr.mingw_app_type]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x360): multiple definition of `.refptr.__image_base__'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__image_base__[.refptr.__image_base__]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x420): multiple definition of `.refptr._fmode'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._fmode[.refptr._fmode]+0x0): first defined here
test.exe:crtexe.c:(.idata+0x3a8): multiple definition of `__imp__ZSt4cout'
test.exe:crtexe.c:(.idata+0x3a8): first defined here
test.exe:crtexe.c:(.rdata+0x3d0): multiple definition of `.refptr.__xc_a'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xc_a[.refptr.__xc_a]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x400): multiple definition of `.refptr.__xi_z'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xi_z[.refptr.__xi_z]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x300): multiple definition of `.refptr._MINGW_INSTALL_DEBUG_MATHERR'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._MINGW_INSTALL_DEBUG_MATHERR[.refptr._MINGW_INSTALL_DEBUG_MATHERR]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3e0): multiple definition of `.refptr.__xc_z'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xc_z[.refptr.__xc_z]+0x0): first defined here
C:\Users\lenovo\AppData\Local\Temp\cccop8R3.o:main.cpp:(.rdata$.refptr._ZSt4cout[.refptr._ZSt4cout]+0x0): multiple definition of `__fu0__ZSt4cout'
test.exe:crtexe.c:(.rdata+0x310): first defined here
collect2.exe: error: ld returned 1 exit status

here’s the compilation log from the stderr using g++ main.cpp test.exe &> outputdebug.txt

C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/bin/ld.exe: Dwarf Error: Could not find abbrev number 3926.
test.exe:crtexe.c:(.text+0x4b0): multiple definition of `WinMainCRTStartup'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.text+0x4b0): first defined here
test.exe:crtexe.c:(.text+0x4e0): multiple definition of `mainCRTStartup'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.text+0x4e0): first defined here
test.exe:crtexe.c:(.text+0x510): multiple definition of `atexit'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.text+0x510): first defined here
test.exe:cygming-crtbegin.c:(.text+0x530): multiple definition of `__gcc_register_frame'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/crtbegin.o:cygming-crtbegin.c:(.text+0x0): first defined here
test.exe:cygming-crtbegin.c:(.text+0x540): multiple definition of `__gcc_deregister_frame'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/crtbegin.o:cygming-crtbegin.c:(.text+0x10): first defined here
test.exe:main.cpp:(.text+0x550): multiple definition of `main'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0xcf): first defined here
test.exe:crtexe.c:(.rdata+0x3c0): multiple definition of `.refptr.__native_startup_state'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__native_startup_state[.refptr.__native_startup_state]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x490): multiple definition of `.refptr.mingw_initltsdyn_force'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initltsdyn_force[.refptr.mingw_initltsdyn_force]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x370): multiple definition of `.refptr.__imp___initenv'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__imp___initenv[.refptr.__imp___initenv]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x440): multiple definition of `.refptr._matherr'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._matherr[.refptr._matherr]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x4a0): multiple definition of `.refptr.mingw_initltssuo_force'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initltssuo_force[.refptr.mingw_initltssuo_force]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x410): multiple definition of `.refptr._dowildcard'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._dowildcard[.refptr._dowildcard]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x470): multiple definition of `.refptr.mingw_initcharmax'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initcharmax[.refptr.mingw_initcharmax]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3a0): multiple definition of `.refptr.__mingw_oldexcpt_handler'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__mingw_oldexcpt_handler[.refptr.__mingw_oldexcpt_handler]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3f0): multiple definition of `.refptr.__xi_a'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xi_a[.refptr.__xi_a]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x450): multiple definition of `.refptr._newmode'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._newmode[.refptr._newmode]+0x0): first defined here
test.exe:crtexe.c:(.CRT+0x8): multiple definition of `mingw_pcppinit'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.CRT$XCAA+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x480): multiple definition of `.refptr.mingw_initltsdrot_force'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_initltsdrot_force[.refptr.mingw_initltsdrot_force]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3b0): multiple definition of `.refptr.__native_startup_lock'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__native_startup_lock[.refptr.__native_startup_lock]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x350): multiple definition of `.refptr.__dyn_tls_init_callback'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__dyn_tls_init_callback[.refptr.__dyn_tls_init_callback]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x310): multiple definition of `.refptr._ZSt4cout'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.rdata$.refptr._ZSt4cout[.refptr._ZSt4cout]+0x0): first defined here
test.exe:crtexe.c:(.data+0x0): multiple definition of `__mingw_winmain_nShowCmd'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.data+0x0): first defined here
test.exe:crtexe.c:(.CRT+0x20): multiple definition of `mingw_pcinit'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.CRT$XIAA+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x430): multiple definition of `.refptr._gnu_exception_handler'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._gnu_exception_handler[.refptr._gnu_exception_handler]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x460): multiple definition of `.refptr.mingw_app_type'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.mingw_app_type[.refptr.mingw_app_type]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x360): multiple definition of `.refptr.__image_base__'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__image_base__[.refptr.__image_base__]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x420): multiple definition of `.refptr._fmode'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._fmode[.refptr._fmode]+0x0): first defined here
test.exe:crtexe.c:(.idata+0x3a8): multiple definition of `__imp__ZSt4cout'
test.exe:crtexe.c:(.idata+0x3a8): first defined here
test.exe:crtexe.c:(.rdata+0x3d0): multiple definition of `.refptr.__xc_a'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xc_a[.refptr.__xc_a]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x400): multiple definition of `.refptr.__xi_z'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xi_z[.refptr.__xi_z]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x300): multiple definition of `.refptr._MINGW_INSTALL_DEBUG_MATHERR'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr._MINGW_INSTALL_DEBUG_MATHERR[.refptr._MINGW_INSTALL_DEBUG_MATHERR]+0x0): first defined here
test.exe:crtexe.c:(.rdata+0x3e0): multiple definition of `.refptr.__xc_z'
C:/MinGW/bin/../lib/gcc/x86_64-w64-mingw32/8.1.0/../../../../x86_64-w64-mingw32/lib/../lib/crt2.o:crtexe.c:(.rdata$.refptr.__xc_z[.refptr.__xc_z]+0x0): first defined here
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.rdata$.refptr._ZSt4cout[.refptr._ZSt4cout]+0x0): multiple definition of `__fu0__ZSt4cout'
test.exe:crtexe.c:(.rdata+0x310): first defined here
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x28): undefined reference to `std::allocator<char>::allocator()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x3e): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x4a): undefined reference to `std::allocator<char>::~allocator()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x62): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x7e): undefined reference to `std::allocator<char>::~allocator()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x98): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0xc4): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0xed): undefined reference to `std::allocator<char>::allocator()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x107): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x129): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x135): undefined reference to `std::allocator<char>::~allocator()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x157): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <char, std::char_traits<char>, std::allocator<char> >(std::basic_ostream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x166): undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x186): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char)'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x1b9): undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.text+0x1ca): undefined reference to `std::allocator<char>::~allocator()'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.xdata+0xc): undefined reference to `__gxx_personality_seh0'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.xdata+0x40): undefined reference to `__gxx_personality_seh0'
C:\Users\lenovo\AppData\Local\Temp\ccGPBLYb.o:main.cpp:(.rdata$.refptr._ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_[.refptr._ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_]+0x0): undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::endl<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&)'
collect2.exe: error: ld returned 1 exit status

any solution is needed, please

and yeah I’m ready to get downvoted, bcus I know the harsh reality of the StackOverflow’s c++ fellas

I’m just here to learn to code not to get roasted down to the oblivion

>Solution :

I just tried your code with MinGW-w64 GCC 12.1.0 from https://winlibs.com/ and there was no error building with g++ main.cpp -o test.exe and the program runs fine.

So it looks like your build environment is somehow broken.

The advantage of using the standalone build from https://winlibs.com/ is that you can just extract it (no installation procedure needed), so you can leave your current build environment untouched.

byMR
Published
Add a comment

Leave a Reply

Keep Up to Date with the Most Important News

By pressing the Subscribe button, you confirm that you have read and are agreeing to our Privacy Policy and Terms of Use

Read more

Discover more from Dev solutions

Subscribe now to keep reading and get access to the full archive.

Continue reading