diff options
Diffstat (limited to 'contrib/gcc/tree.def')
| -rw-r--r-- | contrib/gcc/tree.def | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/contrib/gcc/tree.def b/contrib/gcc/tree.def index 9cfe139..f0f43a7 100644 --- a/contrib/gcc/tree.def +++ b/contrib/gcc/tree.def @@ -757,9 +757,12 @@ DEFTREECODE (CONJ_EXPR, "conj_expr", '1', 1) DEFTREECODE (REALPART_EXPR, "realpart_expr", '1', 1) DEFTREECODE (IMAGPART_EXPR, "imagpart_expr", '1', 1) -/* Nodes for ++ and -- in C. - The second arg is how much to increment or decrement by. - For a pointer, it would be the size of the object pointed to. */ +/* The first argument is the lvalue to be incremented or decremented. + The second argument is the value that should be added or + subtracted. If the first argument has pointer type, the second + argument is interpreted as the number of bytes to add or subtract + from the address. The second argument must not be a constant + zero. */ DEFTREECODE (PREDECREMENT_EXPR, "predecrement_expr", 'e', 2) DEFTREECODE (PREINCREMENT_EXPR, "preincrement_expr", 'e', 2) DEFTREECODE (POSTDECREMENT_EXPR, "postdecrement_expr", 'e', 2) |
