diff options
| -rw-r--r-- | Parser/node.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Parser/node.c b/Parser/node.c index 86d607a..264fd9e 100644 --- a/Parser/node.c +++ b/Parser/node.c @@ -45,3 +45,26 @@ addchild(n1, type, str) n->n_child = NULL; return n; } + +static void +freechildren(n) + node *n; +{ + int i; + for (i = NCH(n); --i >= 0; ) + freechildren(CHILD(n, i)); + if (n->n_child != NULL) + DEL(n->n_child); + if (STR(n) != NULL) + DEL(STR(n)); +} + +void +freenode(n) + node *n; +{ + if (n != NULL) { + freechildren(n); + DEL(n); + } +} |