Shriramana Sharma wrote: > I found a different solution, which is by declaring the variables > static. Find attached solutions. > > But still the C parser (or what is it?) did throw up an error with the > const variable, which C++ did not. In C, "const" is only valid for pointer and array targets, not for primitive types or structures. > @Andre: Is there any I should not declare a variable in a header file if > I want that variable to be visible to many cpp files? I can avoid > writing many "extern" lines by using static. Presumably, you mean "define a variable"; a declaration (e.g. "extern int foo") merely tells the compiler that the variable exists, and its type, while a definition actually creates the variable. If you define a variable in a header file, each object file will get a separate copy of the variable. All of the variables will have the same name, but they will be different variables; modifying one won't affect any of the others. This is fine for a constant (unless it occupies a lot of memory, in which case you don't want to include a separate copy in each object file), but not for a variable. -- Glynn Clements <glynn@xxxxxxxxxxxxxxxxxx> - To unsubscribe from this list: send the line "unsubscribe linux-c-programming" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
