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print function now works for null tree

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Daniel Holden
2015-02-22 17:38:47 +00:00
parent 7ab3140617
commit 3878cd76e6
1 changed files with 6 additions and 0 deletions
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6
mpc.c
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@@ -2486,6 +2486,7 @@ void mpc_ast_delete(mpc_ast_t *a) {
int i; int i;
if (a == NULL) { return; } if (a == NULL) { return; }
for (i = 0; i < a->children_num; i++) { for (i = 0; i < a->children_num; i++) {
mpc_ast_delete(a->children[i]); mpc_ast_delete(a->children[i]);
} }
@@ -2599,6 +2600,11 @@ mpc_ast_t *mpc_ast_state(mpc_ast_t *a, mpc_state_t s) {
static void mpc_ast_print_depth(mpc_ast_t *a, int d, FILE *fp) { static void mpc_ast_print_depth(mpc_ast_t *a, int d, FILE *fp) {
int i; int i;
if (a == NULL) {
fprintf(fp, "NULL\n");
}
for (i = 0; i < d; i++) { fprintf(fp, " "); } for (i = 0; i < d; i++) { fprintf(fp, " "); }
if (strlen(a->contents)) { if (strlen(a->contents)) {