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authorMarek Polacek <polacek@redhat.com>2024-08-01 10:35:38 -0400
committerMarek Polacek <polacek@redhat.com>2024-08-02 14:42:17 -0400
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treef4ac1194f8e27d665c118531d16f94589dd91556 /gcc/c-family/c.opt
parent5b4476a165565cb20729c0a97a3f43b060595209 (diff)
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c++: Move -Wdangling-reference to -Wextra
Despite a number of mitigations (don't warn for std::span-like classes, lambdas, adding [[gnu::no_dangling]], etc.), the warning still seems to cause some grief. Let's move the warning to -Wextra, then. gcc/c-family/ChangeLog: * c.opt (Wdangling-reference): Move from -Wall to -Wextra. gcc/ChangeLog: * doc/invoke.texi: Document that -Wdangling-reference is enabled by -Wextra.
Diffstat (limited to 'gcc/c-family/c.opt')
-rw-r--r--gcc/c-family/c.opt2
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
index a52682d..979f17a 100644
--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
@@ -604,7 +604,7 @@ C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_dangling_pointer) Warn
Warn for uses of pointers to auto variables whose lifetime has ended.
Wdangling-reference
-C++ ObjC++ Var(warn_dangling_reference) Warning LangEnabledBy(C++ ObjC++, Wall)
+C++ ObjC++ Var(warn_dangling_reference) Warning LangEnabledBy(C++ ObjC++, Wextra)
Warn when a reference is bound to a temporary whose lifetime has ended.
Wdate-time