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-rw-r--r--gcc/cp/ChangeLog7
-rw-r--r--gcc/cp/typeck.c16
2 files changed, 18 insertions, 5 deletions
diff --git a/gcc/cp/ChangeLog b/gcc/cp/ChangeLog
index ae43baad92d..e5f6305faf7 100644
--- a/gcc/cp/ChangeLog
+++ b/gcc/cp/ChangeLog
@@ -1,3 +1,10 @@
+2014-11-26 Ville Voutilainen <ville.voutilainen@gmail.com>
+
+ Diagnose string constant conversion to char* in c++11 and above
+ as forbidden, not deprecated.
+ * typeck.c (string_conv_p): Do a pedwarn in c++11 and above,
+ change the diagnostic for the Wwrite-strings case for c++11 and above.
+
2014-11-24 Jason Merrill <jason@redhat.com>
* pt.c (lookup_template_variable): Always unknown_type_node.
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c
index e100d70b1f2..8b66acc9011 100644
--- a/gcc/cp/typeck.c
+++ b/gcc/cp/typeck.c
@@ -2139,12 +2139,18 @@ string_conv_p (const_tree totype, const_tree exp, int warn)
|| TREE_CODE (TREE_OPERAND (exp, 0)) != STRING_CST)
return 0;
}
-
- /* This warning is not very useful, as it complains about printf. */
if (warn)
- warning (OPT_Wwrite_strings,
- "deprecated conversion from string constant to %qT",
- totype);
+ {
+ if (cxx_dialect >= cxx11)
+ pedwarn (input_location,
+ pedantic ? OPT_Wpedantic : OPT_Wwrite_strings,
+ "ISO C++ forbids converting a string constant to %qT",
+ totype);
+ else
+ warning (OPT_Wwrite_strings,
+ "deprecated conversion from string constant to %qT",
+ totype);
+ }
return 1;
}