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  1. #include<stdio.h>
  2. #include<limits.h>
  3.  
  4. typedef struct int_stack
  5. {
  6.     size_t position;
  7.     size_t length;
  8.     int* container;
  9. } int_stack;
  10.  
  11. void initialize(int_stack* stack, int container[], size_t container_size)
  12. {
  13.     stack->length = container_size;
  14.     stack->position = 0;
  15.     stack->container = container;
  16. }
  17.  
  18.  
  19. void push(int_stack* stack, int value)
  20. {
  21.     if(stack->position < stack->length)
  22.     {
  23.         stack->container[stack->position++] = value;
  24.     }
  25. }
  26.  
  27. int pop(int_stack* stack)
  28. {
  29.     int value = INT_MIN;
  30.     if(stack->position > 0)
  31.     {
  32.         value = stack->container[--stack->position];
  33.     }
  34.     return value;
  35. }
  36.  
  37. int main()
  38. {
  39.     int_stack stack;
  40.     int array[5];
  41.  
  42.     initialize(&stack, array, sizeof(array)/sizeof(array[0]));
  43.     push(&stack, 10);
  44.     push(&stack, 2);
  45.     push(&stack, 6);
  46.     printf("%d\n", pop(&stack));
  47.     printf("%d\n", pop(&stack));
  48.     push(&stack, 3);
  49.     push(&stack,-2);
  50.     printf("%d\n", pop(&stack));
  51.     printf("%d\n", pop(&stack));
  52.     printf("%d\n", pop(&stack));
  53.     printf("%d\n", pop(&stack));
  54.     printf("%d\n", pop(&stack));
  55.  
  56.     return 0;
  57. }
  58.  
Success #stdin #stdout 0s 9432KB
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stdin
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Standard input is empty
stdout
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6
2
-2
3
10
-2147483648
-2147483648
https://ideone.com/l6k2LS
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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