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allow '*pointer' expressions

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Bill Currie 2010-01-13 06:31:41 +00:00 committed by Jeff Teunissen
parent 22776f9ffd
commit ae4fc3147d
3 changed files with 12 additions and 0 deletions
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1
tools/qfcc/include/expr.h
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@ -222,6 +222,7 @@ expr_t *return_expr (struct function_s *f, expr_t *e);
expr_t *conditional_expr (expr_t *cond, expr_t *e1, expr_t *e2);
expr_t *incop_expr (int op, expr_t *e, int postop);
expr_t *array_expr (expr_t *array, expr_t *index);
expr_t *pointer_expr (expr_t *pointer);
expr_t *address_expr (expr_t *e1, expr_t *e2, struct type_s *t);
expr_t *assign_expr (expr_t *e1, expr_t *e2);
expr_t *cast_expr (struct type_s *t, expr_t *e);

10
tools/qfcc/source/expr.c
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@ -2267,6 +2267,16 @@ array_expr (expr_t *array, expr_t *index)
return e;
}
expr_t *
pointer_expr (expr_t *pointer)
{
type_t *pointer_type = get_type (pointer);
if (pointer_type->type != ev_pointer)
return error (pointer, "not a pointer");
return array_expr (pointer, new_integer_expr (0));
}
expr_t *
address_expr (expr_t *e1, expr_t *e2, type_t *t)
{

1
tools/qfcc/source/qc-parse.y
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@ -1104,6 +1104,7 @@ unary_expr
| '!' cast_expr %prec UNARY { $$ = unary_expr ('!', $2); }
| '~' cast_expr %prec UNARY { $$ = unary_expr ('~', $2); }
| '&' cast_expr %prec UNARY { $$ = address_expr ($2, 0, 0); }
| '*' cast_expr %prec UNARY { $$ = pointer_expr ($2); }
| SIZEOF unary_expr %prec UNARY { $$ = sizeof_expr ($2, 0); }
| SIZEOF '(' type ')' %prec HYPERUNARY { $$ = sizeof_expr (0, $3); }
;