c++ - What does "use -D_SCL_SECURE_NO_WARNINGS" mean?

Question

I've got an error trying to compile my curve compression program, error no C4996, function call with parameters may be unsafe. It's telling me to use the above. The error is coming from xutility header file, which I've never laid eyes on before. is this a flag I have to input into a console? There is literally no reference to it online...

Answer 1

-D is a command line compiler flag which causes the rest of the text to be treated as if there was a #define in your code.

In solution explorer, right click the project, select "properties". The project property page will open. Expand the ">C/C++" entry in the tree on the left and select "Preprocessor" under that. The top entry in the right pane should be "Preprocessor Definitions". In that edit box, add _SCL_SECURE_NO_WARNINGS, separating it from the other entries with a ;