26 lines
558 B
C
26 lines
558 B
C
#include "lfstack.h"
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void stack_init(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(Stack *stack) {
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ll_destroy(stack);
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}
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int stack_push(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(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(Stack *stack, void **data) {
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return ll_remove(stack, stack->tail, data);
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}
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