Jon Willesen wrote:
I recently attempted to upgrade from boost 1.32.0 to boost 1.33.1 got received some compiler errors from boost.assign.
My most common usage of boost::assign looks like this:
vector<string> data = (list_of<string>(), "foo", "bar", "baz");
I like this better than the alternative syntax (elements delimeted by parentheses) because I can type it more quickly and it more closely resembles array initialization syntax, which makes it more likely that my coworkers, who aren't as familiar with boost, will understand what's going on.
ok.
But it appears my compiler errors were caused by the removal of the comma operator in the class the list_of function returns. It appears this was intentional since the unit tests were changed, but the current documentation for list_of still indicates the comma operator is legal syntax, and operator+= still uses the comma syntax, so I'm a little confused.
My memory is weak in this respect, but I think I might have viewed the syntax as redundant. If you like the comma, you might write data += "foo", "bar", "baz"; but that is not initialization. I don't mind adding the operator again, it should be trivially defined, but I wonder if we removed it because it could actually create problems in some situations. -Thorsten