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| author | Nathan Sidwell <nathan@acm.org> | 2017-11-15 13:18:09 +0000 |
|---|---|---|
| committer | Nathan Sidwell <nathan@gcc.gnu.org> | 2017-11-15 13:18:09 +0000 |
| commit | 03ab2eb725851203ccc34ca3210439801812a6be (patch) | |
| tree | 11000c7700a2d61a46ce3a7e455d12e6a4694c66 /gcc | |
| parent | 17bae2cadb4e28940545cc4fdb6223ca7e21ed60 (diff) | |
| download | gcc-03ab2eb725851203ccc34ca3210439801812a6be.zip gcc-03ab2eb725851203ccc34ca3210439801812a6be.tar.gz gcc-03ab2eb725851203ccc34ca3210439801812a6be.tar.bz2 | |
[PR c++/81574] lambda capture of function reference
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg01200.html
PR c++/81574
* lambda.c (lambda_capture_field_type): Function references are
always catured by reference.
PR c++/81574
* g++.dg/cpp1y/pr81574.C: New.
From-SVN: r254768
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/cp/lambda.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/cpp1y/pr81574.C | 13 |
4 files changed, 26 insertions, 1 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog index 839042e..e8c882f 100644 --- a/gcc/cp/ChangeLog +++ b/gcc/cp/ChangeLog @@ -1,3 +1,9 @@ +2017-11-15 Nathan Sidwell <nathan@acm.org> + + PR c++/81574 + * lambda.c (lambda_capture_field_type): Function references are + always catured by reference. + 2017-11-15 Martin Liska <mliska@suse.cz> * decl.c (begin_destructor_body): Use cp_build_fold_indirect_ref diff --git a/gcc/cp/lambda.c b/gcc/cp/lambda.c index 2cbad87..4480c67 100644 --- a/gcc/cp/lambda.c +++ b/gcc/cp/lambda.c @@ -245,7 +245,8 @@ lambda_capture_field_type (tree expr, bool explicit_init_p, { type = non_reference (unlowered_expr_type (expr)); - if (!is_this && by_reference_p) + if (!is_this + && (by_reference_p || TREE_CODE (type) == FUNCTION_TYPE)) type = build_reference_type (type); } diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 1dada43..8478a7a 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2017-11-15 Nathan Sidwell <nathan@acm.org> + + PR c++/81574 + * g++.dg/cpp1y/pr81574.C: New. + 2017-11-15 Richard Biener <rguenther@suse.de> PR tree-optimization/82985 diff --git a/gcc/testsuite/g++.dg/cpp1y/pr81574.C b/gcc/testsuite/g++.dg/cpp1y/pr81574.C new file mode 100644 index 0000000..f9949ab --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp1y/pr81574.C @@ -0,0 +1,13 @@ +// { dg-do compile { target c++14 } } +// PR c++/81574 references to functions are captured by reference. + +// 8.1.5.2/10 +// For each entity captured by copy, ... an lvalue reference to the +// referenced function type if the entity is a reference to a function + +void f (void (&b)()) +{ + [=] { b; } (); + [=, b(f)] { b; } (); + [=, b(b)] { b; } (); +} |