Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Cannot define/undefine preprocessor symbols after first token in file
The #define
and #undef
preprocessor directives must be used at the beginning of a program, before any other keywords, such as those used in the namespace declaration.
The following sample generates CS1032:
// CS1032.cs
namespace x
{
public class clx
{
#define a // CS1032, put before namespace
public static void Main()
{
}
}
}
Collaborate with us on GitHub
The source for this content can be found on GitHub, where you can also create and review issues and pull requests. For more information, see our contributor guide.