diff options
Diffstat (limited to 'comp/lucas-standen-NEA/code/proto/ast/astg.c')
| -rw-r--r-- | comp/lucas-standen-NEA/code/proto/ast/astg.c | 25 |
1 files changed, 16 insertions, 9 deletions
diff --git a/comp/lucas-standen-NEA/code/proto/ast/astg.c b/comp/lucas-standen-NEA/code/proto/ast/astg.c index fc6fc8f..e96b771 100644 --- a/comp/lucas-standen-NEA/code/proto/ast/astg.c +++ b/comp/lucas-standen-NEA/code/proto/ast/astg.c @@ -19,11 +19,25 @@ typedef struct ast_node { ast_node *left; } ast_node; +void freeAst(ast_node *head){ + if (head->left != NULL) + freeAst(head->left); + if (head->right != NULL) + freeAst(head->left); + free(head); +} + int exec(ast_node *exp){ - if (exp->left != NULL) + if (exp->left != NULL){ exp->realLeft = exec(exp->left); - if (exp->right != NULL) + freeAst(exp->left); + exp->left = NULL; + } + if (exp->right != NULL){ exp->realRight = exec(exp->right); + freeAst(exp->right); + exp->right = NULL; + } if (exp->operation == ADD) return exp->realLeft+ exp->realRight; @@ -36,10 +50,3 @@ int exec(ast_node *exp){ return 0; } -void freeAst(ast_node *head){ - if (head->left != NULL) - freeAst(head->left); - if (head->right != NULL) - freeAst(head->left); - free(head); -} |