参照元†
返り値†
/* When checking is enabled, errors will be generated if a tree node
is accessed incorrectly. The macros die with a fatal error. */
#if defined ENABLE_TREE_CHECKING && (GCC_VERSION >= 2007)
//...
/* In all nodes that are expressions, this is the data type of the expression.
In POINTER_TYPE nodes, this is the type that the pointer points to.
In ARRAY_TYPE nodes, this is the type of the elements.
In VECTOR_TYPE nodes, this is the type of the elements. */
#define TREE_TYPE(NODE) \
(CONTAINS_STRUCT_CHECK (NODE, TS_TYPED)->typed.type)
#else /* not ENABLE_TREE_CHECKING, or not gcc */
//...
#define TREE_TYPE(NODE) ((NODE)->typed.type)
コメント†