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(default_conversion): Pass through non-lvalue arrays without any conversion and/or error messages. 

(default_conversion):  Pass through non-lvalue arrays
without any conversion and/or error messages.  Such operands are
perfectly OK in many contexts.

(build_conditional_expr): Do default_conversion
before testing for ERROR_MARK.

From-SVN: r4281
This commit is contained in:
Richard Stallman 1993-04-30 00:54:54 +00:00
parent b61cccc267
commit e855c5ce20
1 changed files with 8 additions and 8 deletions
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16
gcc/c-typeck.c
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@ -986,8 +986,8 @@ default_conversion (exp)
if (!lvalue_p (exp)
&& ! (TREE_CODE (exp) == CONSTRUCTOR && TREE_STATIC (exp)))
{
error ("invalid use of non-lvalue array");
return error_mark_node;
/* Non-lvalue arrays do not decay into pointers. */
return exp;
}
if (TYPE_READONLY (type) || TYPE_VOLATILE (type))
@ -3560,11 +3560,6 @@ build_conditional_expr (ifexp, op1, op2)
ifexp = truthvalue_conversion (default_conversion (ifexp));
if (TREE_CODE (ifexp) == ERROR_MARK
|| TREE_CODE (TREE_TYPE (op1)) == ERROR_MARK
|| TREE_CODE (TREE_TYPE (op2)) == ERROR_MARK)
return error_mark_node;
#if 0 /* Produces wrong result if within sizeof. */
/* Don't promote the operands separately if they promote
the same way. Return the unpromoted type and let the combined
@ -3582,13 +3577,18 @@ build_conditional_expr (ifexp, op1, op2)
}
#endif
/* They don't match; promote them both and then try to reconcile them. */
/* Promote both alternatives. */
if (TREE_CODE (TREE_TYPE (op1)) != VOID_TYPE)
op1 = default_conversion (op1);
if (TREE_CODE (TREE_TYPE (op2)) != VOID_TYPE)
op2 = default_conversion (op2);
if (TREE_CODE (ifexp) == ERROR_MARK
|| TREE_CODE (TREE_TYPE (op1)) == ERROR_MARK
|| TREE_CODE (TREE_TYPE (op2)) == ERROR_MARK)
return error_mark_node;
type1 = TREE_TYPE (op1);
code1 = TREE_CODE (type1);
type2 = TREE_TYPE (op2);