go-linq to c linq about go-linq

[haifenghuang]

BTW, I'm using gcc(version 8.3.0), and it supports nested functions.

[ahmetb]

Wouldn't know as I don’t use C.
It doesn’t sound like a good idea to call this library from C either.

[haifenghuang]

I know the reason why it core dumps. In official document of Nested Function has below statement:

If you try to call the nested function through its address after the containing function exits, 
all hell breaks loose. If you try to call it after a containing scope level exits, and if it refers to some of 
the variables that are no longer in scope, you may be lucky, but it’s not wise to take the risk. If, 
however, the nested function does not refer to anything that has gone out of scope, you should be 
safe.