26 lines
591 B
C
26 lines
591 B
C
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#include "stack.h"
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void stack_init(struct Stack* stack, void (*destroy)(void* data)) {
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ll_init(stack, destroy);
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}
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void stack_destroy(struct Stack* stack) {
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ll_destroy(stack);
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}
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int stack_push(struct Stack* stack, void *data) {
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if (stack->size == 0) {
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return ll_ins_next(stack, NULL, data);
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} else {
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return ll_ins_next(stack, stack->tail, data);
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}
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}
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void *stack_peek(struct Stack *stack) {
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return stack->tail == NULL ? NULL : stack->tail->data;
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}
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int stack_pop(struct Stack *stack, void **data) {
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return ll_remove(stack, stack->tail, data);
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}
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