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(truthvalue_conversion): Specific error message when the "truthvalue" of a struct... 

(truthvalue_conversion):  Specific error message when the
"truthvalue" of a struct, union, or array type operand is needed.

From-SVN: r4293
This commit is contained in:
Richard Stallman 1993-05-01 04:09:06 +00:00
parent 5f0abdc3ca
commit 257e61ed70
1 changed files with 23 additions and 0 deletions
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23
gcc/c-common.c
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@ -955,6 +955,29 @@ truthvalue_conversion (expr)
{
register enum tree_code code;
if (TREE_CODE (expr) == ERROR_MARK)
return expr;
/* These really should return error_mark_node after 2.4 is stable.
But not all callers handle ERROR_MARK properly. */
switch (TREE_CODE (TREE_TYPE (expr)))
{
case RECORD_TYPE:
error ("struct type value used where scalar is required");
return integer_zero_node;
case UNION_TYPE:
error ("union type value used where scalar is required");
return integer_zero_node;
case ARRAY_TYPE:
error ("array type value used where scalar is required");
return integer_zero_node;
default:
break;
}
switch (TREE_CODE (expr))
{
/* It is simpler and generates better code to have only TRUTH_*_EXPR