how to replace SOLUTION_DIR

Question

I am trying to run a C++ demo code in Visual Studio Code on windows, I am getting error "identifier "SOLUTION_DIR" is undefined C/C++(20)" how I can solve this ? and how I can replace it?

const auto pathData = SOLUTION_DIR"data/S2.tsv";

here also pic shows the error enter image description here

Answer 1

The C++ demo is originally meant for Visual Studio.

You can either

• define the variable with #define SOLUTION_DIR "C:\\mypath\\todata\" in the beginning of a header or cpp file using it,
• or you replace every occurence by the full path, e.g. const auto pathData = "c:\\mypath\\todata\\data\\S2.tsv"; (assuming the program can accept '' and '/'
• or you provide it to the compiler command line with /D see https://learn.microsoft.com/en-us/cpp/build/reference/d-preprocessor-definitions?view=msvc-170
• or you load the demo into Visual Studio (there is a free feature-rich Community Version available): https://visualstudio.microsoft.com/vs/community/