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c-typeck.c (convert_for_assignment): Don't allow conversions between pointers and references. 

* c-typeck.c (convert_for_assignment): Don't allow conversions
        between pointers and references.  Only allow lvalues to convert to
        reference.

From-SVN: r50731
This commit is contained in:
Jason Merrill 2002-03-13 04:58:55 -05:00 committed by Jason Merrill
parent c52a375d21
commit a1652cee9a
2 changed files with 12 additions and 1 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2002-03-12 Jason Merrill <jason@redhat.com>
* c-typeck.c (convert_for_assignment): Don't allow conversions
between pointers and references. Only allow lvalues to convert to
reference.
2002-03-13 Hartmut Penner <hpenner@de.ibm.com>
* config/s390/s390.h (PROFILE_BEFORE_PROLOGUE): Emit profile code

7
gcc/c-typeck.c
View File

@ -4027,6 +4027,11 @@ convert_for_assignment (type, rhs, errtype, fundecl, funname, parmnum)
if (codel == REFERENCE_TYPE
&& comptypes (TREE_TYPE (type), TREE_TYPE (rhs)) == 1)
{
if (!lvalue_p (rhs))
{
error ("cannot pass rvalue to reference parameter");
return error_mark_node;
}
if (mark_addressable (rhs) == 0)
return error_mark_node;
rhs = build1 (ADDR_EXPR, build_pointer_type (TREE_TYPE (rhs)), rhs);
@ -4146,7 +4151,7 @@ convert_for_assignment (type, rhs, errtype, fundecl, funname, parmnum)
/* Conversions among pointers */
else if ((codel == POINTER_TYPE || codel == REFERENCE_TYPE)
&& (coder == POINTER_TYPE || coder == REFERENCE_TYPE))
&& (coder == codel))
{
tree ttl = TREE_TYPE (type);
tree ttr = TREE_TYPE (rhstype);