C# has some features that are very appealing to me - particularly the array bounds checking and such. (That and pointers has caused me lots of problems in C)
Am I mad to consider re-writing a large C program in C#?
If I do, how easy would it be to get a program written and compiled on Windows with Visual Studios up and running on other operating systems?
Well they are technically totally different. A large C program will have a lot of things that need to be changed for sure.
For anything but trivial programs the answer would be quite hard.
By the way I definently wouldn't get into C# because you "think" you won't have to deal with pointers or know when your array will be out of bounds. You will find out that C# has it's own idiosyncrasies, and that knowing c/c++ well will help you immensely when writing C#. <--Some extra 2 cents.
