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| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2019-05-21 20:10:50 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2019-05-21 20:10:50 +0000 |
| commit | b2997f579a8b6552a49eab97e33c437b9251eb0a (patch) | |
| tree | 73c1636810d5a9a7b8d5e9af36cd2c6ab0182eac /clang/test/CXX/expr/expr.prim/expr.prim.lambda/p23.cpp | |
| parent | 6e19543a2a2013bd357eb15e383b435cd0cbb810 (diff) | |
| download | bcm5719-llvm-b2997f579a8b6552a49eab97e33c437b9251eb0a.tar.gz bcm5719-llvm-b2997f579a8b6552a49eab97e33c437b9251eb0a.zip | |
[c++20] P0780R2: Support pack-expansion of init-captures.
This permits an init-capture to introduce a new pack:
template<typename ...T> auto x = [...a = T()] { /* a is a pack */ };
To support this, the mechanism for allowing ParmVarDecls to be packs has
been extended to support arbitrary local VarDecls.
llvm-svn: 361300
Diffstat (limited to 'clang/test/CXX/expr/expr.prim/expr.prim.lambda/p23.cpp')
| -rw-r--r-- | clang/test/CXX/expr/expr.prim/expr.prim.lambda/p23.cpp | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p23.cpp b/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p23.cpp index 4ae34dec3e3..028fcee5fda 100644 --- a/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p23.cpp +++ b/clang/test/CXX/expr/expr.prim/expr.prim.lambda/p23.cpp @@ -1,5 +1,6 @@ -// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify -Wno-c++1y-extensions -// RUN: %clang_cc1 -fsyntax-only -std=c++1y %s -verify +// RUN: %clang_cc1 -fsyntax-only -std=c++11 %s -verify -Wno-c++1y-extensions -Wno-c++2a-extensions +// RUN: %clang_cc1 -fsyntax-only -std=c++1y %s -verify -Wno-c++2a-extensions +// RUN: %clang_cc1 -fsyntax-only -std=c++2a %s -verify void print(); @@ -60,8 +61,25 @@ template void variadic_lambda(int*, float*, double*); template<typename ...Args> void init_capture_pack_err(Args ...args) { - [as(args)...] {} (); // expected-error {{expected ','}} - [as...(args)]{} (); // expected-error {{expected ','}} + [...as(args)]{} (); + [as(args)...] {} (); // expected-error {{ellipsis in pack init-capture must appear before the name of the capture}} + [as...(args)]{} (); // expected-error {{ellipsis in pack init-capture must appear before the name of the capture}} + [...as{args}]{} (); + [as{args}...] {} (); // expected-error {{ellipsis in pack init-capture must appear before the name of the capture}} + [as...{args}]{} (); // expected-error {{ellipsis in pack init-capture must appear before the name of the capture}} + [...as = args]{} (); + [as = args...] {} (); // expected-error {{ellipsis in pack init-capture must appear before the name of the capture}} + [as... = args]{} (); // expected-error {{ellipsis in pack init-capture must appear before the name of the capture}} + + [&...as(args)]{} (); + [...&as(args)]{} (); // expected-error {{ellipsis in pack init-capture must appear before the name of the capture}} + + [args...] {} (); + [...args] {} (); // expected-error {{ellipsis in pack capture must appear after the name of the capture}} + + [&args...] {} (); + [...&args] {} (); // expected-error {{ellipsis in pack capture must appear after the name of the capture}} + [&...args] {} (); // expected-error {{ellipsis in pack capture must appear after the name of the capture}} } template<typename ...Args> |
