In C++1y/C++14, you can use the apostrophe. i.e. 2'333
They took a backward compatible approach by using a symbol that's not already used for other operations, like "," or "." or ";" The grammar would be non-trivial or too restricted otherwise, IMO.
They took a backward compatible approach by using a symbol that's not already used for other operations, like "," or "." or ";" The grammar would be non-trivial or too restricted otherwise, IMO.