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C++1y, so stop adding the 'const' there. Provide a compatibility warning for
code relying on this in C++11, with a fix-it hint. Update our lazily-written
tests to add the const, except for those ones which were testing our
implementation of this rule.
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available on all targets.
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the AST.
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have a direct mismatch between some component of the template and some
component of the argument. The diagnostic now says what the mismatch was, but
doesn't yet say which part of the template doesn't match.
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partially-substituted parameter pack in a template, forget about the
partially-substituted parameter pack: it is now completed. Fixes
<rdar://problem/12176336>.
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ActOnFinishFullExpr that some of its checks only apply to discarded-value
expressions. This adds missing checks for unexpanded variadic template
parameter packs to a handful of constructs.
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we know whether it is static.
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Don't require that, during template deduction, a template specialization type
as a function parameter has at least as many template arguments as one used in
a function argument (not even if the argument has been resolved to an exact
type); the additional parameters might be provided by default template
arguments in the template. We don't need this check, since we now implement
[temp.deduct.call]p4 with an additional check after deduction.
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specified as a qualified name.
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and defined within the current instantiation, but which are not part of the
current instantiation. Previously, it would look at bases which could be
specialized separately from the current template.
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VerifyDiagnosticConsumer, make the necessary adjustment to 580 test-cases which will henceforth require this new directive.
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for a type alias template can appear as sugar at any level of desugaring, just
like a TypedefType.
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member function templates with an rvalue ref qualifier.
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functions.
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warning to an error. C++ bans it, and both GCC and EDG diagnose it as
an error. Microsoft allows it, so we still warn in Microsoft
mode. Fixes <rdar://problem/11135644>.
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parameter packs where the reference is not being expanded but the pack has
been. Previously, Clang would segfault in such cases.
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unexpanded parameter pack is a pack expansion. Thus, as with a non-type template
parameter which is a pack expansion, it needs to be expanded early into a fixed
list of template parameters.
Since the expanded list of template parameters is not itself a parameter pack,
it is permitted to appear before the end of the template parameter list, so also
remove that restriction (for both template template parameter pack expansions and
non-type template parameter pack expansions).
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things going on here that were problematic:
- We were missing the actual access check, or rather, it was suppressed
on account of being a redeclaration lookup.
- The access check would naturally happen during delay, which isn't
appropriate in this case.
- We weren't actually emitting dependent diagnostics associated with
class templates, which was unfortunate.
- Access was being propagated incorrectly for friend method declarations
that couldn't be matched at parse-time.
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and a function template instantiation, if there's a parameter pack in the
declaration and one at the same place in the instantiation, don't assume that
the pack wasn't expanded -- it may have expanded to nothing. Instead, go ahead
and check whether the parameter pack was expandable. We can do this as a
side-effect of the work we'd need to do anyway, to find how many parameters
were produced.
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Update the two function overloads
void TemplateSpecializationType::PrintTemplateArgumentList(raw_ostream &OS,....
to behave like
std::string TemplateSpecializationType::PrintTemplateArgumentList(const TemplateArgument *Args,...
hence making sure that clang consistently adds a space between two '>' at the end of nested template arguments.
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where '>' is going to behave as an operator (and not as a '>' closing
a template argument list).
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are otherwise too short to try to correct.
The TODOs added to two of the tests are for existing deficiencies in the
typo correction code that could be exposed by using longer identifiers.
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Moves the bool bail-out down a little in SemaChecking - so now
-Wnull-conversion and -Wliteral-conversion can fire when the target type is
bool.
Also improve the wording/details in the -Wliteral-conversion warning to match
the -Wconstant-conversion.
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so that we actually accumulate all the delayed diagnostics. Do
this so that we can restore those diagnostics to good standing
if it turns out that we were wrong to suppress, e.g. if the
tag specifier is actually an elaborated type specifier and not
a declaration.
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Part of rdar://10796159
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exception specifications on member functions until after the closing
'}' for the containing class. This allows, for example, a member
function to throw an instance of its own class. Fixes PR12564 and a
fairly embarassing oversight in our C++98/03 support.
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in the wrong namespace scope. Patch by Jonathan Sauer!
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non-type template parameter of pointer type is not a constant expression.
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Richard's feedback, to properly catch non-constant expressions and
type mismatches. Finishes <rdar://problem/11193097>.
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template parameters of pointer, pointer-to-member, or nullptr_t
type in C++11. Fixes PR9700 / <rdar://problem/11193097>.
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This diagnostic seems to be production ready, it's just an oversight that it
wasn't turned on by default.
The test changes are a bit of a mixed bag. Some tests that seemed like they
clearly didn't need to use this behavior have been modified not to use it.
Others that I couldn't be sure about, I added the necessary expected-warnings
to.
It's possible the diagnostic message could be improved to make it clearer that
this warning can be suppressed by using a value that won't lose precision when
converted to the target type (but can still be a floating point literal, such
as "bool b = 1.0;").
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__thread.
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or function with internal linkage as a non-type template argument.
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concerning qualified declarator-ids. We now diagnose extraneous
qualification at namespace scope (which we had previously missed) and
diagnose these qualification errors for all kinds of declarations; it
was rather uneven before. Fixes <rdar://problem/11135644>.
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class template's definition, and for explicit specializations of such enum
members.
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scoped enumeration members. Later uses of an enumeration temploid as a nested
name specifier should cause its instantiation. Plus some groundwork for
explicit specialization of member enumerations of class templates.
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parameter's declaration are ignored when determining the parameter's type.
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at the end of the parameter list.
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functions that includes an explicit template argument list, perform
an inner deduction against each of the function templates in that list
and, if successful, use the result of that deduction for the outer
template argument deduction. Fixes PR11713.
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structural comparison of non-dependent types. Otherwise, we end up
rejecting cases where the non-dependent types don't match due to
qualifiers in, e.g., a pointee type. Fixes PR12132.
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bug involving packs. Fixes PR12049.
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instead of having a special-purpose function.
- ActOnCXXDirectInitializer, which was mostly duplication of
AddInitializerToDecl (leading e.g. to PR10620, which Eli fixed a few days
ago), is dropped completely.
- MultiInitializer, which was an ugly hack I added, is dropped again.
- We now have the infrastructure in place to distinguish between
int x = {1};
int x({1});
int x{1};
-- VarDecl now has getInitStyle(), which indicates which of the above was used.
-- CXXConstructExpr now has a flag to indicate that it represents list-
initialization, although this is not yet used.
- InstantiateInitializer was renamed to SubstInitializer and simplified.
- ActOnParenOrParenListExpr has been replaced by ActOnParenListExpr, which
always produces a ParenListExpr. Placed that so far failed to convert that
back to a ParenExpr containing comma operators have been fixed. I'm pretty
sure I could have made a crashing test case before this.
The end result is a (I hope) considerably cleaner design of initializers.
More importantly, the fact that I can now distinguish between the various
initialization kinds means that I can get the tricky generalized initializer
test cases Johannes Schaub supplied to work. (This is not yet done.)
This commit passed self-host, with the resulting compiler passing the tests. I
hope it doesn't break more complicated code. It's a pretty big change, but one
that I feel is necessary.
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template without a corresponding parameter pack, don't immediately
substitute the alias template. This is under discussion in the C++
committee, and may become ill-formed, but for now we match GCC.
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template. Such pack expansions can easily fail at template
instantiation time, if the expanded parameter packs are of the wrong
length. Fixes <rdar://problem/10040867>, PR9021, and the example that
came up today at Going Native.
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specialization.
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initialization, not default initialization. Fixes PR11712.
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'is an extension'. The former is inappropriate and confusing when building with
-Werror/-pedantic-errors.
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