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34 lines
767 B
34 lines
767 B
/*
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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#include "ref_stack.h"
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#include <assert.h>
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#include <stdlib.h>
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ref_stack* new_ref_stack(int max_size) {
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ref_stack* result = malloc(sizeof(ref_stack));
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result->data = malloc(sizeof(data_type) * max_size);
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result->max_size = max_size;
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result->size = 0;
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return result;
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}
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void ref_stack_push(ref_stack* s, data_type v) {
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assert(s != NULL);
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assert(s->size < s->max_size);
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s->data[s->size] = v;
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++s->size;
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}
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data_type ref_stack_pop(ref_stack* s) {
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assert(s != NULL);
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assert(s->size > 0);
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--s->size;
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data_type result = s->data[s->size];
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return result;
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}
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