
Comuni errori di programmazione (puntatori)
Quiz
•
Computers
•
University
•
Practice Problem
•
Hard
Elia Tomasi
Used 6+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
int a;
double *pd;
pd = &a;
Compila
Compila con warning
Non compila
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
double b, c, *pd;
b = 3.14;
pd = &c;
*pd = &b;
Compila
Compila ma risulta in segmentation fault in esecuzione
Non compila
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
double b, *pd;
*pd = 3.14;
b = *pd;
Compila
Compila ma può risultare in segmentation fault in esecuzione
Non compila
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
int a;
a = &2;
Non compila, infatti la costante 2 sta venendo trattata come lvalue e questo non è permesso
Compila, infatti la costante 2 esiste in memoria e possiede un proprio indirizzo
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
double b, c, *pd;
b = 3.14;
c = &(*pd);
Compila
Non compila
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
int a;
double b = 3.14, *pd;
pd = &b;
a = *pd;
Compila
Compila ma risulta in segmentation fault in esecuzione
Non compila
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
double b, *pd;
*pd = 3.14;
&b = pd;
Compila, infatti è possibile usare b come puntatore
Non compila, infatti &b è un rvalue e non può trovarsi a sinistra di un'assegnazione
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