Here, it is trying to compile using C++98 as seen in the error. The snippets are correct and have been tested with online compilers using C++11. You can check the version using the same commands on any operating system, whether that is a Windows, Linux, or macOS-based operating system. If you get the version number, then the compiler is already installed on your system. Some_program.cpp:12:33: error: in C++98 'A' must be initialized by constructor, not by '' Simply open your terminal and use gcc -version and g++ -version. Some_program.cpp: In function 'int main()': Please help me out if there are alternate ways to get my program compiled. I wish I could tweak some setting in Visual Studio Code and change the compiler command from g++ to g++ -std=c++11 so that I could compile programs by just hitting the run code button. I am aware that using g++ -std=c++11, we can compile C++11 programs using g++ and it works fine when I use it in my cmd as: When I try compiling C++11 programs, the compiler command g++ tries to compile it using default C++98 Standard and this results in errors. However, I am facing difficulty in compiling c++11 programs using it. The easy option is to pass them as args in your tasks.I'm using Visual Studio Code to compile C++ programs and it works for most C++ programs as it compiles it using g++ command. Please let me know about any problems with the way I have asked this question. Terminal will be reused by tasks, press any key to close it. The terminal process terminated with exit code: 1 home/msammartino/Documents/twochain/dimer.cpp:173: undefined reference to `fftw_execute'Ĭollect2: error: ld returned 1 exit status home/msammartino/Documents/twochain/dimer.cpp:172: undefined reference to `fftw_execute' home/msammartino/Documents/twochain/dimer.cpp:171: undefined reference to `fftw_execute' home/msammartino/Documents/twochain/dimer.cpp:170: undefined reference to `fftw_execute' home/msammartino/Documents/twochain/dimer.cpp:169: undefined reference to `fftw_plan_r2r_1d' home/msammartino/Documents/twochain/dimer.cpp:168: undefined reference to `fftw_plan_r2r_1d' home/msammartino/Documents/twochain/dimer.cpp:167: undefined reference to `fftw_plan_r2r_1d' home/msammartino/Documents/twochain/dimer.cpp:166: undefined reference to `fftw_plan_r2r_1d' tmp/ccgb7Xsv.o: In function `r2r_dsine_fftw_backward_dimer(int, double*, double*, Eigen::Matrix (&), Eigen::Matrix (&) )': home/msammartino/Documents/twochain/dimer.cpp:106: undefined reference to `fftw_execute' home/msammartino/Documents/twochain/dimer.cpp:105: undefined reference to `fftw_execute' home/msammartino/Documents/twochain/dimer.cpp:104: undefined reference to `fftw_execute' home/msammartino/Documents/twochain/dimer.cpp:103: undefined reference to `fftw_execute' home/msammartino/Documents/twochain/dimer.cpp:102: undefined reference to `fftw_plan_r2r_1d' home/msammartino/Documents/twochain/dimer.cpp:101: undefined reference to `fftw_plan_r2r_1d' home/msammartino/Documents/twochain/dimer.cpp:100: undefined reference to `fftw_plan_r2r_1d' home/msammartino/Documents/twochain/dimer.cpp:99: undefined reference to `fftw_plan_r2r_1d' Executing task: /usr/bin/g++ -g /home/msammartino/Documents/twochain/dimer.cpp -o /home/msammartino/Documents/twochain/dimer (&), Eigen::Matrix (&) )': I am trying to transform a Mathematica document of code into c++.īelow are the errors I get from the output. I am using Microsoft's C/C++ extension and the Code Runner extension. I believe that it needs just the extra flags of -std=c++11 and -lfftw3įor the debugger in Visual Studio Code to work. However, after generating a launch.json file, my program complains about fftw library functions and about the -std=c++14 compiler flag. On the terminal on my computer without complaining about undefined references. It compiles with the command g++ dimer.cpp -std=c++11 -lfftw3 I have a program that I am trying to run in the Visual Studio Code debugger that uses fftw functions.
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