aboutsummaryrefslogtreecommitdiff
path: root/test/SemaCXX/static-cast.cpp
AgeCommit message (Collapse)Author
2011-04-15Implement appropriate semantics for C++ casting and conversion whenDouglas Gregor
dealing with address-space- and GC-qualified pointers. Previously, these qualifiers were being treated just like cvr-qualifiers (in some cases) or were completely ignored, leading to uneven behavior. For example, const_cast would allow conversion between pointers to different address spaces. The new semantics are fairly simple: reinterpret_cast can be used to explicitly cast between pointers to different address spaces (including adding/removing addresss spaces), while static_cast/dynamic_cast/const_cast do not tolerate any changes in the address space. C-style casts can add/remove/change address spaces through the reinterpret_cast mechanism. Other non-CVR qualifiers (e.g., Objective-C GC qualifiers) work similarly. As part of this change, I tweaked the "casts away constness" diagnostic to use the term "casts away qualifiers". The term "constness" actually comes from the C++ standard, despite the fact that removing "volatile" also falls under that category. In Clang, we also have restrict, address spaces, ObjC GC attributes, etc., so the more general "qualifiers" is clearer. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@129583 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-08Properly diagnose invalid casts to function references. Patch byDouglas Gregor
Faisal Vali, tweaked by me. Fixes PR8230. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@118400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-05'const std::type_info*' instead of 'std::type_info const*'Chris Lattner
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113092 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-05make clang print types as "const int *" instead of "int const*",Chris Lattner
which is should have done from the beginning. As usual, the most fun with this sort of change is updating all the testcases. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113090 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-09Turn access control on by default in -cc1.John McCall
Remove -faccess-control from -cc1; add -fno-access-control. Make the driver pass -fno-access-control by default. Update a bunch of tests to be correct under access control. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@100880 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24Switch static_cast from the old reference-initialization code (viaDouglas Gregor
CheckReferenceInit) over to the new initialization code (InitializationSequence), which is better-tested and doesn't require us to compute the entire conversion sequence twice. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@99452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-10When pretty-printing tag types, only print the tag if we're in C (andJohn McCall
therefore not creating ElaboratedTypes, which are still pretty-printed with the written tag). Most of these testcase changes were done by script, so don't feel too sorry for my fingers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@98149 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-07Perform overload resolution when static_cast'ing from aDouglas Gregor
pointer-to-member-to-derived to a pointer-to-member-to-base. Fixes PR6072. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@97923 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-10Improve access control diagnostics. Perform access control on member-pointerJohn McCall
conversions. Fix an access-control bug where privileges were not considered at intermediate points along the inheritance path. Prepare for friends. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@95775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-31Fix my dyslexia.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-31Add a test case for a fixed PR just to ensure we don't regress.Chandler Carruth
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94957 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-15Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'.Daniel Dunbar
- This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@91446 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-15When performing a static downcast as part of a static_cast, make sureDouglas Gregor
that we're dealing with canonical types like the documentation say (yay, CanQualType). Alas, this is another instance where using getQualifiers() on a non-canonical QualType got us in trouble. Good news: with this fix, Clang can now parse all of its own headers! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88848 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14- Have TryStaticImplicitCast set the cast kind to NoOp when binding a ↵Sebastian Redl
reference. CheckReferenceInit already inserts implicit casts to the necessary types. This fixes an assertion in CodeGen for some casts and brings a fix for PR5453 close, if I understand that bug correctly. - Also, perform calculated implicit cast sequences if they're determined to work. This finally diagnoses static_cast to ambiguous or implicit bases and fixes two long-standing fixmes in the test case. For the C-style cast, this requires propagating the access check suppression pretty deep into other functions. - Pass the expressions for TryStaticCast and TryStaticImplicitCast by reference. This should lead to a better AST being emitted for such casts, and also fixes a memory leak, because CheckReferenceInit and PerformImplicitConversion wrap the node passed to them. These wrappers were previously lost. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88809 91177308-0d34-0410-b5e6-96231b3b80d8
2009-11-14When type-checking a static cast (or the static_cast part of a C-styleDouglas Gregor
cast) that is converting to a class type, enumerate its constructors as in any other direct initialization. This ensures that we get the proper conversion sequence. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88751 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-22Try to instantiate templates before doing hierarchy checks in static_cast. ↵Sebastian Redl
Fixes PR5261. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84860 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-25Implement C++ semantics for C-style and functional-style casts. This ↵Sebastian Redl
regresses Clang extension conversions, like vectors, but allows conversions via constructors and conversion operators. Add custom conversions to static_cast. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@77076 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-03Use "()" instead of "(void)" when pretty-printing a parameter-less function ↵Argyrios Kyrtzidis
type for C++. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@72747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-24Rename clang to clang-cc.Daniel Dunbar
Tests and drivers updated, still need to shuffle dirs. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-16Almost complete implementation of rvalue references. One bug, and a few ↵Sebastian Redl
unclear areas. Maybe Doug can shed some light on some of the fixmes. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67059 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Implement pointer to member handling in static_cast.Sebastian Redl
Fix a stupid mistake in UnwrapSimilarPointers that made any two member pointers compatible as long as the pointee was the same. Make a few style corrections as suggested by Chris. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63215 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-07Greatly improve static_cast diagnosticsSebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58873 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-05A small error message improvement and some comment cleanup for static_cast.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58762 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-31Implement semantic checking of static_cast and dynamic_cast.Sebastian Redl
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58509 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-09-15 00:29:10 +0000