38 lines
765 B
C
38 lines
765 B
C
#include "ast_neg.h"
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#include <stdio.h>
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#include <stdlib.h>
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struct ast_neg *ast_get_neg(struct ast *node)
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{
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if (node == NULL || node->type != AST_NEG)
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return NULL;
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return node->data;
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}
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struct ast *ast_create_neg(bool negation, struct ast *child)
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{
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struct ast_neg *neg_data = malloc(sizeof(struct ast_neg));
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if (neg_data == NULL)
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{
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perror("Error: could not allocate more memory");
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return NULL;
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}
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neg_data->negation = negation;
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neg_data->child = child;
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struct ast *result = ast_create(AST_NEG, neg_data);
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if (result == NULL)
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free(neg_data);
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return result;
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}
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void ast_free_neg(struct ast_neg *node)
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{
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if (node == NULL)
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return;
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ast_free(&node->child);
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free(node);
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}
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