(truthvalue_conversion): A complex value is nonzero if either part is

nonzero, not if both parts are nonzero.

From-SVN: r5259

gcc/c-common.c

 /* Subroutines shared by all languages that are variants of C.
-   Copyright (C) 1992 Free Software Foundation, Inc.
+   Copyright (C) 1992, 1993 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -1026,7 +1026,7 @@ truthvalue_conversion (expr)
 
     case COMPLEX_EXPR:
       return build_binary_op ((TREE_SIDE_EFFECTS (TREE_OPERAND (expr, 1))
-			       ? TRUTH_AND_EXPR : TRUTH_ANDIF_EXPR),
+			       ? TRUTH_OR_EXPR : TRUTH_ORIF_EXPR),
 			      truthvalue_conversion (TREE_OPERAND (expr, 0)),
 			      truthvalue_conversion (TREE_OPERAND (expr, 1)),
 			      0);
@@ -1096,7 +1096,7 @@ truthvalue_conversion (expr)
   if (TREE_CODE (TREE_TYPE (expr)) == COMPLEX_TYPE)
     return (build_binary_op
 	    ((TREE_SIDE_EFFECTS (expr)
-	      ? TRUTH_AND_EXPR : TRUTH_ANDIF_EXPR),
+	      ? TRUTH_OR_EXPR : TRUTH_ORIF_EXPR),
 	     truthvalue_conversion (build_unary_op (REALPART_EXPR, expr, 0)),
 	     truthvalue_conversion (build_unary_op (IMAGPART_EXPR, expr, 0)),
 	     0));