我有一个程序试图在使用 fftw 函数的 Visual Studio Code 调试器中运行。它用命令编译
g++ dimer.cpp -std=c++11 -lfftw3
在我的计算机上的终端上,而不会抱怨未定义的引用。但是,在生成 launch.json 文件后,我的程序抱怨 fftw 库函数和-std=c++14
编译器标志。
我相信它只需要额外的标志-std=c++11
and -lfftw3
以便 Visual Studio Code 中的调试器正常工作。我正在使用 Microsoft 的 C/C++ 扩展和 Code Runner 扩展。
我正在尝试将 Mathematica 代码文档转换为 C++。
以下是我从输出中得到的错误。
Executing task: /usr/bin/g++ -g /home/msammartino/Documents/twochain/dimer.cpp -o /home/msammartino/Documents/twochain/dimer <
In file included from /usr/include/armadillo:54:0,
from /home/msammartino/Documents/twochain/dimer.cpp:6:
/usr/include/armadillo_bits/compiler_setup.hpp:530:108: note: #pragma message: NOTE: suggest to enable C++14 mode for faster code; add -std=c++14 to compiler flags
#pragma message ("NOTE: suggest to enable C++14 mode for faster code; add -std=c++14 to compiler flags")
^
/tmp/ccgb7Xsv.o: In function `r2r_dsine_fftw_forward_dimer(int, double*, double*, Eigen::Matrix<double, 2, 2, 0, 2, 2> (&) [2048], Eigen::Matrix<double, 2, 2, 0, 2, 2> (&) [2048])':
/home/msammartino/Documents/twochain/dimer.cpp:99: 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:101: undefined reference to `fftw_plan_r2r_1d'
/home/msammartino/Documents/twochain/dimer.cpp:102: undefined reference to `fftw_plan_r2r_1d'
/home/msammartino/Documents/twochain/dimer.cpp:103: undefined reference to `fftw_execute'
/home/msammartino/Documents/twochain/dimer.cpp:104: undefined reference to `fftw_execute'
/home/msammartino/Documents/twochain/dimer.cpp:105: undefined reference to `fftw_execute'
/home/msammartino/Documents/twochain/dimer.cpp:106: undefined reference to `fftw_execute'
/tmp/ccgb7Xsv.o: In function `r2r_dsine_fftw_backward_dimer(int, double*, double*, Eigen::Matrix<double, 2, 2, 0, 2, 2> (&) [2048], Eigen::Matrix<double, 2, 2, 0, 2, 2> (&) [2048])':
/home/msammartino/Documents/twochain/dimer.cpp:166: 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:168: undefined reference to `fftw_plan_r2r_1d'
/home/msammartino/Documents/twochain/dimer.cpp:169: undefined reference to `fftw_plan_r2r_1d'
/home/msammartino/Documents/twochain/dimer.cpp:170: undefined reference to `fftw_execute'
/home/msammartino/Documents/twochain/dimer.cpp:171: undefined reference to `fftw_execute'
/home/msammartino/Documents/twochain/dimer.cpp:172: undefined reference to `fftw_execute'
/home/msammartino/Documents/twochain/dimer.cpp:173: undefined reference to `fftw_execute'
collect2: error: ld returned 1 exit status
The terminal process terminated with exit code: 1
Terminal will be reused by tasks, press any key to close it.
如果我提出这个问题的方式有任何问题,请告诉我。