Are these valid operators

[Morgan]

Are <<, >> and ?? valid operators within a c program (strictly c only, I know that they can be used in c++).

I was asked to look at some code which seemed to be some kind of debug function, but which contained these operators, and I didn't recognise them as valid within C code. Any comments?

[confuted]

<< and >> are left and right bitwise-shift. I have no idea what ?? is.

[FillYourBrain]

perhaps you mean "?" which is the inline ternary operator. It's pretty much the same thing as an if/else.

condition ? IfTrue : IfFalse;

just gives you a quick-short way of doing a conditional value.

[Morgan]

Thanks. From what you've described, the code was using tr-graphs. I'd never heard of them before.

Cheers.