gs gs108 Miscellaneous Topics - Unsafe Code Pointers Basics - Quiz No.2
gs gs108 CSharp Quiz
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Question 1: How many values can be returned from a function simultaneously using pointers?
1
2
3
as many as user wants
Question 2: Consider an integer pointer . *a.++*a will increment ___________ while *a++ will increment __________
value at a, address contained in a
value at a,value at a
address contained in a, address contained in a
address contained in a, value at a
Question 3: What will be the output of the following C# code snippet?
class UnsafeCode { unsafe static void Main() { int* a; int a1 = 10; int b1; b1 = *&a1; a = &b1; { Console.WriteLine(*a); Console.ReadLine(); } } }
program will print garbage value
program will print address of a
program will print value of a1
program will print address of a1
Question 4: What will be the output of the following C# code snippet?
class UnsafeCode { unsafe static void Main() { int n = 10; int* p = &n; int** p1 = &p; int*** p2 = &p1; Console.WriteLine(*p * **p1 * ***p2); Console.ReadLine(); } }
compile time error
garbage value is printed
program will print 1000
program will print 100
Question 5: What will be the output of the following C# code snippet?
class UnsafeCode { unsafe static void Main() { int* p; p = (int*)(65535); Console.WriteLine((uint)p); Console.ReadLine(); } }
compile time error
garbage value
program prints value at address 65535
program prints 65535
