grammar – IT Nursery

int a[] = {1,2,}; Why is a trailing comma in an initializer-list allowed?

May 11, 2022 by IT Nursery

Maybe I am not from this planet, but it would seem to me that the following should be a syntax error: int a[] = {1,2,}; //extra comma in the end But it’s not. I was surprised when this code compiled on Visual Studio, but I have learnt not to trust MSVC compiler as far as … Read more

Is C++ context-free or context-sensitive?

May 6, 2022 by IT Nursery

I often hear claims that C++ is a context-sensitive language. Take the following example: a b(c); Is this a variable definition or a function declaration? That depends on the meaning of the symbol c. If c is a variable, then a b(c); defines a variable named b of type a. It is directly initialized with … Read more