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| author | Jason Merrill <jason@redhat.com> | 2020-09-02 16:47:37 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2020-12-10 15:36:15 -0500 |
| commit | 3cf63c94df4712569e0ab996155013a3a043bed3 (patch) | |
| tree | ace8cabaa9a8553b576a222edb7e245246d67623 /gcc/cp/parser.c | |
| parent | 445430e16bd08ade34637d2346ded40dd49de508 (diff) | |
| download | gcc-3cf63c94df4712569e0ab996155013a3a043bed3.zip gcc-3cf63c94df4712569e0ab996155013a3a043bed3.tar.gz gcc-3cf63c94df4712569e0ab996155013a3a043bed3.tar.bz2 | |
c++: Add make_temp_override generator functions
A common pattern before C++17 is the generator function, used to avoid
having to specify the type of a container element by using a function call
to get type deduction; for example, std::make_pair. C++17 added class type
argument deduction, making generator functions unnecessary for many uses,
but GCC won't be written in C++17 for years yet.
gcc/cp/ChangeLog:
* cp-tree.h (struct type_identity): New.
(make_temp_override): New.
* decl.c (grokdeclarator): Use it.
* except.c (maybe_noexcept_warning): Use it.
* parser.c (cp_parser_enum_specifier): Use it.
(cp_parser_parameter_declaration_clause): Use it.
(cp_parser_gnu_attributes_opt): Use it.
(cp_parser_std_attribute): Use it.
Diffstat (limited to 'gcc/cp/parser.c')
| -rw-r--r-- | gcc/cp/parser.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/gcc/cp/parser.c b/gcc/cp/parser.c index 39957d4..7ea8c28 100644 --- a/gcc/cp/parser.c +++ b/gcc/cp/parser.c @@ -19732,7 +19732,7 @@ cp_parser_enum_specifier (cp_parser* parser) bool is_unnamed = false; tree underlying_type = NULL_TREE; cp_token *type_start_token = NULL; - temp_override<bool> cleanup (parser->colon_corrects_to_scope_p, false); + auto cleanup = make_temp_override (parser->colon_corrects_to_scope_p, false); /* Parse tentatively so that we can back up if we don't find a enum-specifier. */ @@ -23381,7 +23381,7 @@ cp_parser_parameter_declaration_clause (cp_parser* parser, cp_token *token; bool ellipsis_p; - temp_override<bool> cleanup + auto cleanup = make_temp_override (parser->auto_is_implicit_function_template_parm_p); if (!processing_specialization @@ -27488,7 +27488,7 @@ cp_parser_gnu_attributes_opt (cp_parser* parser) { tree attributes = NULL_TREE; - temp_override<bool> cleanup + auto cleanup = make_temp_override (parser->auto_is_implicit_function_template_parm_p, false); while (true) @@ -27688,7 +27688,7 @@ cp_parser_std_attribute (cp_parser *parser, tree attr_ns) tree attribute, attr_id = NULL_TREE, arguments; cp_token *token; - temp_override<bool> cleanup + auto cleanup = make_temp_override (parser->auto_is_implicit_function_template_parm_p, false); /* First, parse name of the attribute, a.k.a attribute-token. */ |