Warning C4024 'fprintf_s': different types for formal and actual parameter 2
Error C2440 'function': cannot convert from 'REAL' to 'const char *const
Warning C4133 'function': incompatible types - from 'char ' to 'FILE *const
Error (active) E0167 argument of type "REAL" is incompatible with parameter of type "const char
'Short' and 'REAL' are mandated by the modelling software that I use.
c++ has a fundamental 'short' integer, there is no 'Short'
As for 'REAL' c++ doesn't recognise what that data type is either and you will have to define/convert/export (via your separate modelling software perhaps if it has auto conversions to CSV or similar filing) to make it readable.
PS Using C++ instead of C wouldn't be a bad move too.
> 'fscanf_s': format string '%f' requires an argument of type 'float *', but variadic argument 1 has type 'double'
change the format flag to lf, and take the address of the variable you want to write (¿is this just one number?) refi = fscanf_s( file1, "%lf \r\n", &narray);
now the second error, ¿don't you have syntax highlight? ¿don't you see `file1' in a weird colour? fprintf_s( "file1, %f \r\n", nscal );
your quotes are wrong fprintf_s( file1, "%f \r\n", nscal ); (also, note the %f flag and no memory address this time)
Edit: given that you are trying to modify the parameter in the first function, it shouldn't be passed by value