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Add comparison operators for C++ location classes. Discussed at

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<http://lists.gnu.org/archive/html/bison-patches/2006-06/msg00092.html>.
* data/c++.m4 (b4_define_location_comparison): New boolean %define
declaration indicating whether filename_type has an operator==.  If
filename_type is `std::string', it defaults to `1', `0' otherwise.
* data/location.cc: Iff b4_define_location_comparison is `1', add
operator== and operator!= for class position and for class location.

Some minor fixes.
* src/scan-action.l: Remove unused file.
* src/symtab.c (symbol_printer_set): Use printer_location not
destructor_location.
* src/symtab.h (struct symbol): Replace incorrect source comment for
printer members.
* tests/input.at (Incompatible Aliases): Update output with correct
printer location.
This commit is contained in:
Joel E. Denny
2006-06-22 19:46:05 +00:00
parent 9bc0dd679f
commit 31b2b07ef7
7 changed files with 55 additions and 869 deletions
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2
data/c++.m4
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@@ -30,6 +30,8 @@ m4_define_default([b4_parser_class_name], [parser])
m4_define_default([b4_location_type], [location])
m4_define_default([b4_filename_type], [std::string])
m4_define_default([b4_namespace], m4_defn([b4_prefix]))
m4_define_default([b4_define_location_comparison],
m4_if(b4_filename_type, [std::string], [1], [0]))
# b4_token_enums(LIST-OF-PAIRS-TOKEN-NAME-TOKEN-NUMBER)