/******************** reverse Polish calculater *******************/
int main(void)
{
int type;
double op2;
char s[MAXOP];
while((type = getop(s)) != EOF)
{
switch(type){
case NUMBER:
push(atof(s));
break;
case '+':
push(pop() + pop());
break;
case '*':
push(pop() * pop());
break;
case '-':
op2 = pop();
push(pop() - op2);
break;
case '/':
op2 = pop();
if(op2 != 0.0)
push(pop() / op2);
else
printf("error: zero divisor\n");
break;
case'%':
op2 = pop();
if(op2 != 0.0)
push(fmod(pop(), op2));
else
printf("error: zero divisor\n");
case'?':
showTop();
break;
case'#':
duplicate();
break;
case'~':
swapitems();
case'!':
clearstack();
break;
case'\n':
printf("\t%.8g\n", pop());
break;
default:
printf("error: unknown command %s\n", s);
break;
}
}
return 0;
}
void Mpdf::mouseMoveEvent(QMouseEvent *event)
{
if (event->pos().y() <= 70)
{
showTop();
}
else if (event->pos().y() >= 100)
{
hideTop();
}
}
int main(void)
{
int type;
double op2;
char s[MAXOP];
int flag = TRUE;
while((type = Getop(s)) != EOF)
{
switch(type)
{
case NUMBER:
push(atof(s));
break;
case IDENTIFIER:
dealWithName(s);
break;
case '+':
push(pop() + pop());
break;
case '*':
push(pop() * pop());
break;
case '-':
op2 = pop();
push(pop()- op2);
break;
case '/':
op2 = pop();
if(op2)
push(pop() / op2);
else
printf("\nError: division by zero!");
break;
case '%':
op2 = pop();
if(op2)
push(fmod(pop(), op2));
else
printf("\nError: division by zero!");
break;
case '?':
showTop();
break;
case '#':
duplicate();
break;
case '~':
swapItems();
break;
case '!':
clearStack();
case '\n':
printf("\n\t%.8g\n", pop());
break;
default:
printf("\nError: unknown command %s.\n", s);
break;
}
}
return EXIT_SUCCESS;
}
/******************** reverse Polish calculater *******************/
int main(void)
{
int type;
double op2;
char s[MAXOP];
struct varType var[MAXVARS];
clearstack(var);
while((type = getop(s)) != EOF)
{
switch(type){
case NUMBER:
push(atof(s));
break;
case IDENTIFIER:
mathname(s);
break;
case '+':
push(pop() + pop());
break;
case '*':
push(pop() * pop());
break;
case '-':
op2 = pop();
push(pop() - op2);
break;
case '/':
op2 = pop();
if(op2 != 0.0)
push(pop() / op2);
else
printf("error: zero divisor\n");
break;
case'%':
op2 = pop();
if(op2 != 0.0)
push(fmod(pop(), op2));
else
printf("error: zero divisor\n");
case'?':
showTop();
break;
case'#':
duplicate();
break;
case'~':
swapitems();
case'!':
clearstack(var);
break;
case'\n':
printf("\t%.8g\n", pop());
break;
case ENDSTRING:
break;
case'=':
pop();
var[pos].val = pop();
last.val = var[pos].val;
push(last.val);
break;
case'<':
printf("The last variable used was: %s (value == %g)\n", last.name, last.val);
break;
default:
printf("error: unknown command %s\n", s);
break;
}
}
return 0;
}
int main()
{
FILE *fp;
Pile pile;
tInfo info;
char op;
printf("\t\t\tEjercicio 4 tp3 Pila estatica\n");
if(!openFile(&fp,"r+b",FILENAME,!CON_SIN_MSJ))
{
createFile();
if(!openFile(&fp,"r+b",FILENAME,CON_SIN_MSJ))
return 0;
}
createStack(&pile);
fread(&info,1,sizeof(tInfo),fp);
while(!feof(fp) && !isStackFull(&pile))
{
putInStack(&pile,&info);
fread(&info,1,sizeof(tInfo),fp);
}
fclose(fp);
op = menuOption(MSJ,OPTION);
while(op != 'D')
{
switch(op)
{
case 'A':
{
newInfo(&info);
if(putInStack(&pile, &info) == PILA_LLENA)
puts("pila llena no se pudo cargar la nueva informacion");
break;
}
case 'B':
{
puts("Viendo tope de la pila: ");
if(showTop(&pile,&info) != PILA_VACIA)
showInfo(&info);
else
puts("Pila vacia, no se puede ver tope");
break;
}
case 'C':
{
puts("Sacando de pila...");
if(takeOfStack(&pile,&info) != PILA_VACIA)
showInfo(&info);
else
puts("No se puede sacar de pila, pila vacia");
break;
}
}
op = menuOption(MSJ,OPTION);
}
if(!openFile(&fp,"r+b",FILENAME,CON_SIN_MSJ))
{
puts("Vaciando pila...");
emptyStack(&pile);
return 0;
}
while(!isStackEmpty(&pile))
{
takeOfStack(&pile,&info);
putInTheEndFile(&fp,&info);
}
emptyStack(&pile);
fclose(fp);
return 0;
}
