This repository contains various small projects that demonstrate awful creative ways of accomplishing various things in C#.
In C#, strings are immutable, and const fields may not be modified.
But can we change the value of a const string anyways?
Conclusion: Yes, we can get a read-write Span<char> from the string, and use it to modify the content of the string.
If we rely on string interning, we can even change the content of a string without directly referring to it, by modifying the content of a different interned string with the same content.
This approach does however come with the limitation that the length of the string cannot be expanded.
Can we change the value of string.Empty, so it is no longer empty?
Conclusion: Yes. It is possible to access and modify the internal length counter of a string, as well as change the content of the string, thereby making the string longer.
This will overwrite any memory that is located right after the string. Doing so can result in a fatal errors, if the new string content is sufficiently long.
These are projects that did not work out (which is probably for the best).
FieldOffsetAttribute does not support negative numbers, and will result in a CS0591: Invalid value for argument to attribute, preventing compilation.
But can we work around this by defining a type with a negative FieldOffsetAttribute at runtime?
Conclusion: No, if a negative number is supplied, an ArgumentException will be thrown with the message "Invalid custom attribute provided."
The code in this repository is licensed under the MIT License.
But, like... please don't actually use any of this code.