diff options
Diffstat (limited to 'gcc/cp/tree.c')
| -rw-r--r-- | gcc/cp/tree.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/gcc/cp/tree.c b/gcc/cp/tree.c index 02d5a4b..9a52cc0 100644 --- a/gcc/cp/tree.c +++ b/gcc/cp/tree.c @@ -1,6 +1,6 @@ /* Language-dependent node constructors for parse phase of GNU compiler. Copyright (C) 1987, 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, - 1999, 2000, 2001 Free Software Foundation, Inc. + 1999, 2000, 2001, 2002 Free Software Foundation, Inc. Hacked by Michael Tiemann (tiemann@cygnus.com) This file is part of GNU CC. @@ -1901,6 +1901,27 @@ pod_type_p (t) return 1; } +/* Returns 1 iff zero initialization of type T means actually storing + zeros in it. */ + +int +zero_init_p (t) + tree t; +{ + t = strip_array_types (t); + + /* NULL pointers to data members are initialized with -1. */ + if (TYPE_PTRMEM_P (t)) + return 0; + + /* Classes that contain types that can't be zero-initialized, cannot + be zero-initialized themselves. */ + if (CLASS_TYPE_P (t) && CLASSTYPE_NON_ZERO_INIT_P (t)) + return 0; + + return 1; +} + /* Table of valid C++ attributes. */ const struct attribute_spec cxx_attribute_table[] = { |