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Diffstat (limited to 'gcc/cp/class.h')
| -rw-r--r-- | gcc/cp/class.h | 117 |
1 files changed, 0 insertions, 117 deletions
diff --git a/gcc/cp/class.h b/gcc/cp/class.h deleted file mode 100644 index 1c83d5beb7a..00000000000 --- a/gcc/cp/class.h +++ /dev/null @@ -1,117 +0,0 @@ -/* Variables and structures for overloading rules. - Copyright (C) 1993 Free Software Foundation, Inc. - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU CC is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU CC; see the file COPYING. If not, write to -the Free Software Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* The following structure is used when comparing various alternatives - for overloading. The unsigned quantity `strikes.i' is used - for fast comparison of two possibilities. This number is an - aggregate of four constituents: - - EVIL: if this is non-zero, then the candidate should not be considered - ELLIPSIS: if this is non-zero, then some actual argument has been matched - against an ellipsis - USER: if this is non-zero, then a user-defined type conversion is needed - B_OR_D: if this is non-zero, then use a base pointer instead of the - type of the pointer we started with. - EASY: if this is non-zero, then we have a builtin conversion - (such as int to long, int to float, etc) to do. - - If two candidates require user-defined type conversions, and the - type conversions are not identical, then an ambiguity error - is reported. - - If two candidates agree on user-defined type conversions, - and one uses pointers of strictly higher type (derived where - another uses base), then that alternative is silently chosen. - - Note that this technique really only works for 255 arguments. Perhaps - this is not enough. */ - -/* These macros and harshness_code are used by the NEW METHOD. */ -#define EVIL_CODE (1<<7) -#define CONST_CODE (1<<6) -#define ELLIPSIS_CODE (1<<5) -#define USER_CODE (1<<4) -#define STD_CODE (1<<3) -#define PROMO_CODE (1<<2) -#define QUAL_CODE (1<<1) -#define TRIVIAL_CODE (1<<0) - -struct harshness_code -{ - /* What kind of conversion is involved. */ - unsigned short code; - - /* The inheritance distance. */ - short distance; - - /* For a PROMO_CODE, Any special penalties involved in integral conversions. - This exists because $4.1 of the ARM states that something like - `short unsigned int' should promote to `int', not `unsigned int'. - If, for example, it tries to match two fns, f(int) and f(unsigned), - f(int) should be a better match than f(unsigned) by this rule. Without - this extra metric, they both only appear as "integral promotions", which - will lead to an ambiguity. - For a TRIVIAL_CODE, This is also used by build_overload_call_real and - convert_harshness to keep track of other information we need. */ - unsigned short int_penalty; -}; - -struct candidate -{ - struct harshness_code h; /* Used for single-argument conversions. */ - - int h_len; /* The length of the harshness vector. */ - - tree function; /* A FUNCTION_DECL */ - tree basetypes; /* The path to function. */ - tree arg; /* first parm to function. */ - - /* Indexed by argument number, encodes evil, user, d_to_b, and easy - strikes for that argument. At end of array, we store the index+1 - of where we started using default parameters, or 0 if there are - none. */ - struct harshness_code *harshness; - - union - { - tree field; /* If no evil strikes, the FUNCTION_DECL of - the function (if a member function). */ - int bad_arg; /* the index of the first bad argument: - 0 if no bad arguments - > 0 is first bad argument - -1 if extra actual arguments - -2 if too few actual arguments. - -3 if const/non const method mismatch. - -4 if type unification failed. - -5 if contravariance violation. */ - } u; -}; -int rank_for_overload (); - -/* Variables shared between class.c and call.c. */ - -extern int n_vtables; -extern int n_vtable_entries; -extern int n_vtable_searches; -extern int n_vtable_elems; -extern int n_convert_harshness; -extern int n_compute_conversion_costs; -extern int n_build_method_call; -extern int n_inner_fields_searched; |