50 lines
1.1 KiB
C
Executable File
50 lines
1.1 KiB
C
Executable File
//
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// Created by Nils on 29.10.2023.
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//
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#ifndef STACK
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#define STACK
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#include <stdio.h>
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#include <stdlib.h>
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struct stack {
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int* size;
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int* current;
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unsigned int *stack;
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};
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void printStack(struct stack stack, int fp) {
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printf("Stack\nSize:\t\t%i\nCurrent:\t%i\n", *stack.size, *stack.current);
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for (int i = 0; i < *stack.current; ++i) {
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if(fp == i) printf("|FP|\n");
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printf("|%i|\n", stack.stack[i]);
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}
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}
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void push(struct stack s, unsigned int value) {
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if (*s.current >= *s.size) {
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printf("Stack Overflow\n");
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exit(EXIT_FAILURE);
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}
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s.stack[*s.current] = value;
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*s.current=*s.current + 1;
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}
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unsigned int pop(struct stack s) {
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if (*s.current == 0) {
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printf("Stack Underflow\n");
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exit(EXIT_FAILURE);
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}
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*s.current = *s.current -1;
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return s.stack[*s.current];
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}
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unsigned int peek(struct stack s, int steps) {
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if (*s.current - steps < 0) {
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printf("Stack Underflow\n");
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exit(EXIT_FAILURE);
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}
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return s.stack[*s.current - steps];
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}
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#endif
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