stack.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include "stack.h"

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Functions
mystack_t *	CreateStack (uint32_t capacity)
	Create a Stack object.
mystack_t *	FreeStack (mystack_t *stack)
	Free the memory of a given Stack object.
bool	StackIsEmpty (mystack_t *stack)
	Check if the Stack object is empty.
bool	StackIsFull (mystack_t *stack)
	Check if the Stack object is full.
void	PushStack (mystack_t *stack, stack_value_t value)
	Push a new object to the stack.
stack_value_t	PopStack (mystack_t *stack)
	Pop the object on top of the stack.
stack_value_t	TopStack (mystack_t *stack)
	Return the top object of the stack.
void	PrintStack (mystack_t *stack)
	Print the whole stack.
void	Stack ()

Function Documentation

CreateStack()

mystack_t * CreateStack

(

uint32_t

capacity

)

Create a Stack object.

Parameters

capacity

Returns

stack_t*

Definition at line 14 of file stack.c.

{
    mystack_t *stack = (mystack_t *)malloc(sizeof(mystack_t));
 
    if (stack == NULL)
        return NULL;
 
    size_t data_size = capacity * sizeof(stack_value_t);
    stack_value_t *data = (stack_value_t *)malloc(data_size);
 
    if (data == NULL)
    {
        free(stack);
        return NULL;
    }
 
    stack->capacity = capacity;
    stack->size = 0u;
    stack->data = data;
 
    return stack;
}

References stack::capacity, stack::data, and stack::size.

Referenced by Stack().

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FreeStack()

mystack_t * FreeStack

(

mystack_t *

stack

)

Free the memory of a given Stack object.

Parameters

stack

Returns

stack_t*

Definition at line 43 of file stack.c.

{
    if (stack != NULL)
    {
        if (stack->data != NULL)
        {
            free(stack->data);
        }
        free(stack);
    }
    return NULL;
}

References stack::data.

Referenced by Stack().

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PopStack()

stack_value_t PopStack

(

mystack_t *

stack

)

Pop the object on top of the stack.

Parameters

stack

Returns

stack_value_t

Definition at line 102 of file stack.c.

{
    if (StackIsEmpty(stack))
        return STACK_NO_VALUE;
    stack->size--;
    return stack->data[stack->size];
}

References stack::data, stack::size, STACK_NO_VALUE, and StackIsEmpty().

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PrintStack()

void PrintStack

(

mystack_t *

stack

)

Print the whole stack.

Parameters

stack

Definition at line 129 of file stack.c.

{
    if (stack == NULL)
        return;
 
    printf(
        "The stack contains %u elements with a capacity of %u.\n",
        stack->size,
        stack->capacity
    );
    
    for (int32_t i = 0; i < stack->size; i++)
    {
        printf("Index: %d, Value %f\n", i, stack->data[i]);
    }
}

References stack::capacity, stack::data, and stack::size.

Referenced by Stack().

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PushStack()

void PushStack	(	mystack_t *	stack,
		stack_value_t	value )

Push a new object to the stack.

Parameters

stack

Definition at line 85 of file stack.c.

{
    if (StackIsFull(stack))
    {
        return;
    }
        
    stack->data[stack->size] = value;
    stack->size++;
}

References stack::data, stack::size, and StackIsFull().

Referenced by Stack().

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Stack()

void Stack

(

)

Definition at line 148 of file stack.c.

{
    uint32_t capacity = 4u;
    mystack_t *stack = CreateStack(capacity);
    PushStack(stack, 2.0f);
    PushStack(stack, 3.0f);
    PrintStack(stack);
    stack = FreeStack(stack);
}

References CreateStack(), FreeStack(), PrintStack(), and PushStack().

Referenced by FunctionCall().

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StackIsEmpty()

bool StackIsEmpty

(

mystack_t *

stack

)

Check if the Stack object is empty.

Parameters

stack

Returns

true

false

Definition at line 63 of file stack.c.

{
    return (stack->size == 0u);
}

References stack::size.

Referenced by PopStack(), and TopStack().

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StackIsFull()

bool StackIsFull

(

mystack_t *

stack

)

Check if the Stack object is full.

Parameters

stack

Returns

true

false

Definition at line 75 of file stack.c.

{
    return (stack->size == stack->capacity);
}

References stack::capacity, and stack::size.

Referenced by PushStack().

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TopStack()

stack_value_t TopStack

(

mystack_t *

stack

)

Return the top object of the stack.

Parameters

stack

Returns

stack_value_t

Definition at line 117 of file stack.c.

{
    if (StackIsEmpty(stack))
        return STACK_NO_VALUE;
    return stack->data[stack->size - 1];
}

References stack::data, stack::size, STACK_NO_VALUE, and StackIsEmpty().

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