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opcodesFuncs.c
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#include "monty.h"
/**
* push - pushes into the stack at the top
* @top: the top of the stack
* @line_number: value of arguments
* Return: exit status.
*/
void push(stack_t **top, unsigned int line_number)
{
stack_t *newStack;
int number, negzero;
(void) line_number;
newStack = malloc(sizeof(stack_t));
debugMemStack(newStack);
negzero = globaldata->number[1] == '0' && globaldata->number[0] == '-';
if (!globaldata->number)
goto error;
if (globaldata->number[0] == '0' || negzero)
number = 0;
else if (strConv(globaldata->number) == 0)
{
error:
fprintf(stderr, "L%d: usage: push integer\n", line_number);
exit(EXIT_FAILURE);
}
else
number = strConv(globaldata->number);
newStack->n = number;
if (*top == NULL)
{
newStack->prev = NULL;
newStack->next = NULL;
*top = newStack;
}
else
{
(*top)->next = newStack;
newStack->prev = (*top);
newStack->next = NULL;
*top = newStack;
}
}
/**
* mod - rest of dev of the top two elements of the stack
* @top: the top of the stack
* @line_number: value of arguments
* Return: exit status.
*/
void mod(SP stack_t **top, SP unsigned int line_number)
{
stack_t *po;
if (!globaldata->top)
{
fprintf(stderr, "L%d: can't pop an empty stack\n", line_number);
exit(EXIT_FAILURE);
}
if (globaldata->top->prev == NULL && globaldata->top == NULL)
{
fprintf(stderr, "L%d: can't mod, stack too short\n", line_number);
exit(EXIT_FAILURE);
}
if (globaldata->top->n == 0)
{
fprintf(stderr, "L%d: division by zero\n", line_number);
exit(EXIT_FAILURE);
}
po = globaldata->top;
globaldata->top->prev->n = globaldata->top->prev->n % globaldata->top->n;
globaldata->top = globaldata->top->prev;
globaldata->top->next = NULL;
free(po);
}
/**
* nop - Nothing
* @top: the top of the stack
* @line_number: value of arguments
* Return: Nothing.
*/
void nop(SP stack_t **top, SP unsigned int line_number)
{
return;
}
/**
* _div - div the top two elements of the stack
* @top: the top of the stack
* @line_number: value of arguments
* Return: exit status.
*/
void _div(SP stack_t **top, SP unsigned int line_number)
{
stack_t *po;
if (!globaldata->top)
{
fprintf(stderr, "L%d: can't pop an empty stack\n", line_number);
exit(EXIT_FAILURE);
}
if (globaldata->top->prev == NULL && globaldata->top == NULL)
{
fprintf(stderr, "L%d: can't mod, stack too short\n", line_number);
exit(EXIT_FAILURE);
}
if (globaldata->top->n == 0)
{
fprintf(stderr, "L%d: division by zero\n", line_number);
exit(EXIT_FAILURE);
}
po = globaldata->top;
globaldata->top->prev->n = globaldata->top->prev->n / globaldata->top->n;
globaldata->top = globaldata->top->prev;
globaldata->top->next = NULL;
free(po);
}
/**
* sub - subs the top two elements of the stack
* @top: the top of the stack
* @line_number: value of arguments
* Return: exit status.
*/
void sub(SP stack_t **top, SP unsigned int line_number)
{
stack_t *po;
if (!globaldata->top)
{
fprintf(stderr, "L%d: can't pop an empty stack\n", line_number);
exit(EXIT_FAILURE);
}
if (globaldata->top->prev == NULL && globaldata->top == NULL)
{
fprintf(stderr, "L%d: can't mod, stack too short\n", line_number);
exit(EXIT_FAILURE);
}
po = globaldata->top;
globaldata->top->prev->n -= globaldata->top->n;
globaldata->top = globaldata->top->prev;
globaldata->top->next = NULL;
free(po);
}