MySQL  8.0.27
Source Code Documentation
comp_creator.h
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1 #ifndef COMP_CREATOR_INCLUDED
2 #define COMP_CREATOR_INCLUDED
3 
4 /* Copyright (c) 2019, 2021, Oracle and/or its affiliates.
5 
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25 
26 // Declaration of chooser_compare_func_creator, in a separate file
27 // to make sure that parser_yystype.h does not need to depend on
28 // item_subselect.h.
29 
30 class Comp_creator;
31 
32 /**
33  Convenience typedef for a function that returns factories for Item comparators
34  (ie., returns Comp_creator).
35 
36  @retval nullptr In case of semantic errors.
37 */
38 using chooser_compare_func_creator = Comp_creator *(*)(bool invert);
39 
40 #endif // COMP_CREATOR_INCLUDED
Abstract factory interface for creating comparison predicates.
Definition: item_cmpfunc.h:522
Comp_creator *(*)(bool invert) chooser_compare_func_creator
Convenience typedef for a function that returns factories for Item comparators (ie....
Definition: comp_creator.h:38