Purpose of the given statement: The purpose of the statement is to declare a pointer variable as a null pointer. Syntax error: An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

Question

Want to see the full answer?

Answer 1

Expert Solution & Answer

Chapter 10, Problem 30RQE

A)

Explanation of Solution

Purpose of the given statement:

The purpose of the statement is to declare a pointer variable as a null pointer.

Syntax error:

An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

B)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared. Next statement is defined such a pointer variable holds the address of the variable “x”.

Given statements:

//variable declaration

int x, *ptr;//line 1

//assign the address to a pointer variable

C)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is defined. Next statement is defined with a pointer variable to hold the address of the variable “x”.

Given statements:

//variable declaration

int x , * ptr;

//assign the address of “x” to the “ptr”

*ptr = &x;

Corrected code:

//v...

D)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared .

Next statement is defined such a pointer variable holds the address of the variable “x”.

The next statement is defined to assign the value of “x” to be “100” in the “ptr”. The next statement is used to display the value of “x”.

Given statements:

//variable declaration

int x, *ptr;

//assign the address of the x to the pointer

ptr = &x;

//assign the value of x to be 100

ptr = 100; // Store 100 in x

//display the value of x

cout << x ...

E)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined and declared with value.

Next is a display statement.

Displays the third element of the array using pointers.

Given statements:

//array declaration

int numbers[] = { 10, 20 , 30, 40 , 50 };

//display statement

cout << "The third element in the array is ";

//displays third value present in the array.

cout << *numbers + 3 << endl;

Corrected code:

//array ...

F)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined to hold “20” values and a pointer variable “iptr” is declared.

Next statement is assigning the value of the array to a pointer.

Next statement is to perform a multiplication operation using a pointer variable which is invalid.

Given statements:

/Variable declaration to hold 20 values and a pointer variable that holds zero address /

int values[20] , iptr;

//assign the value to a pointer variable

iptr = values;

//perform multiplication operation

iptr ...

G)

Explanation of Solution

Analysis of the given statement:

A variable of double data type is declared.

The next statement assigns the address of the variable to a variable of type integer.

Given statements:

//variable declaration

double level;

//address of pointer variable is assigned to a variable

int dptr = &level

Error in the above statement:

The address of the variable “level” of &...

H)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

In the next statement a variable of integer data type is declared.

Given statements:

//variable declaration and definition

int *iptr = &ivalue;

//variab...

I)

Explanation of Solution

Analysis of the given statement:

A function named “doubleVal” is passed with an integer type variable “val”.

The parameter value that is passed is multiplied by two.

Given statements:

//method definition

void doubleVal (int val) //line 1

{

//multiply the val by 2

val = 2; //line 2

}

Error p...

J)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...

K)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared.

The memory for pointer variable is allocated dynamically.

Value “100” is assigned to the pointer variable.

Given statements:

//pointer variable declared with zero address

int *pint; //line 1

//dynamically allocate memory space

pint = new int; //line 2

//assign the value 100 to the pointer variable

pint = 100; //line 3

Error...

L)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

An array of 100 elements gets allocated dynamically.

De-allocation of the dynamically allocated memory.

Given statements:

//pointer variable that is assigned with zero address

int pint; // line 1

//dynamically allocate the array

pint = new int[100]; // line 2

/Code that processes the array.

.

.

.

.

.

.

.

.

.

*/

// Free the memory

delete pint; // line 3

Error present in the above statement:

The declared variable is an array pointer, In “Line 3”, “delete” operation is defined for the array pointer is invalid...

M)

Explanation of Solution

Analysis of the given statement:

A method named “getNum()” is provided with a definition.

Variable named “wholeNum” is declared of integer data type.

The user is prompted to enter a number and get it as an input.

The address of the variable “wholeNum” is returned.

Given statements:

//method definition

int *getNum()//line 1

{

//variable declaration

int whol...

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Students have asked these similar questions

I need help to solve a simple problem using Grover’s algorithm, where the solution is not necessarily known beforehand. The problem is a 2×2 binary sudoku with two rules: • No column may contain the same value twice. • No row may contain the same value twice. Each square in the sudoku is assigned to a variable as follows: We want to design a quantum circuit that outputs a valid solution to this sudoku. While using Grover’s algorithm for this task is not necessarily practical, the goal is to demonstrate how classical decision problems can be converted into oracles for Grover’s algorithm. Turning the Problem into a Circuit To solve this, an oracle needs to be created that helps identify valid solutions. The first step is to construct a classical function within a quantum circuit that checks whether a given state satisfies the sudoku rules. Since we need to check both columns and rows, there are four conditions to verify: v0 ≠ v1 # Check top row v2 ≠ v3 # Check bottom row…

using r language

I need help to solve a simple problem using Grover’s algorithm, where the solution is not necessarily known beforehand. The problem is a 2×2 binary sudoku with two rules: • No column may contain the same value twice. • No row may contain the same value twice. Each square in the sudoku is assigned to a variable as follows: We want to design a quantum circuit that outputs a valid solution to this sudoku. While using Grover’s algorithm for this task is not necessarily practical, the goal is to demonstrate how classical decision problems can be converted into oracles for Grover’s algorithm. Turning the Problem into a Circuit To solve this, an oracle needs to be created that helps identify valid solutions. The first step is to construct a classical function within a quantum circuit that checks whether a given state satisfies the sudoku rules. Since we need to check both columns and rows, there are four conditions to verify: v0 ≠ v1 # Check top row v2 ≠ v3 # Check bottom row…

Answer 2

Expert Solution & Answer

Chapter 10, Problem 30RQE

A)

Explanation of Solution

Purpose of the given statement:

The purpose of the statement is to declare a pointer variable as a null pointer.

Syntax error:

An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

B)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared. Next statement is defined such a pointer variable holds the address of the variable “x”.

Given statements:

//variable declaration

int x, *ptr;//line 1

//assign the address to a pointer variable

C)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is defined. Next statement is defined with a pointer variable to hold the address of the variable “x”.

Given statements:

//variable declaration

int x , * ptr;

//assign the address of “x” to the “ptr”

*ptr = &x;

Corrected code:

//v...

D)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared .

Next statement is defined such a pointer variable holds the address of the variable “x”.

The next statement is defined to assign the value of “x” to be “100” in the “ptr”. The next statement is used to display the value of “x”.

Given statements:

//variable declaration

int x, *ptr;

//assign the address of the x to the pointer

ptr = &x;

//assign the value of x to be 100

ptr = 100; // Store 100 in x

//display the value of x

cout << x ...

E)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined and declared with value.

Next is a display statement.

Displays the third element of the array using pointers.

Given statements:

//array declaration

int numbers[] = { 10, 20 , 30, 40 , 50 };

//display statement

cout << "The third element in the array is ";

//displays third value present in the array.

cout << *numbers + 3 << endl;

Corrected code:

//array ...

F)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined to hold “20” values and a pointer variable “iptr” is declared.

Next statement is assigning the value of the array to a pointer.

Next statement is to perform a multiplication operation using a pointer variable which is invalid.

Given statements:

/Variable declaration to hold 20 values and a pointer variable that holds zero address /

int values[20] , iptr;

//assign the value to a pointer variable

iptr = values;

//perform multiplication operation

iptr ...

G)

Explanation of Solution

Analysis of the given statement:

A variable of double data type is declared.

The next statement assigns the address of the variable to a variable of type integer.

Given statements:

//variable declaration

double level;

//address of pointer variable is assigned to a variable

int dptr = &level

Error in the above statement:

The address of the variable “level” of &...

H)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

In the next statement a variable of integer data type is declared.

Given statements:

//variable declaration and definition

int *iptr = &ivalue;

//variab...

I)

Explanation of Solution

Analysis of the given statement:

A function named “doubleVal” is passed with an integer type variable “val”.

The parameter value that is passed is multiplied by two.

Given statements:

//method definition

void doubleVal (int val) //line 1

{

//multiply the val by 2

val = 2; //line 2

}

Error p...

J)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...

K)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared.

The memory for pointer variable is allocated dynamically.

Value “100” is assigned to the pointer variable.

Given statements:

//pointer variable declared with zero address

int *pint; //line 1

//dynamically allocate memory space

pint = new int; //line 2

//assign the value 100 to the pointer variable

pint = 100; //line 3

Error...

L)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

An array of 100 elements gets allocated dynamically.

De-allocation of the dynamically allocated memory.

Given statements:

//pointer variable that is assigned with zero address

int pint; // line 1

//dynamically allocate the array

pint = new int[100]; // line 2

/Code that processes the array.

.

.

.

.

.

.

.

.

.

*/

// Free the memory

delete pint; // line 3

Error present in the above statement:

The declared variable is an array pointer, In “Line 3”, “delete” operation is defined for the array pointer is invalid...

M)

Explanation of Solution

Analysis of the given statement:

A method named “getNum()” is provided with a definition.

Variable named “wholeNum” is declared of integer data type.

The user is prompted to enter a number and get it as an input.

The address of the variable “wholeNum” is returned.

Given statements:

//method definition

int *getNum()//line 1

{

//variable declaration

int whol...

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 3

Expert Solution & Answer

Chapter 10, Problem 30RQE

A)

Explanation of Solution

Purpose of the given statement:

The purpose of the statement is to declare a pointer variable as a null pointer.

Syntax error:

An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

B)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared. Next statement is defined such a pointer variable holds the address of the variable “x”.

Given statements:

//variable declaration

int x, *ptr;//line 1

//assign the address to a pointer variable

C)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is defined. Next statement is defined with a pointer variable to hold the address of the variable “x”.

Given statements:

//variable declaration

int x , * ptr;

//assign the address of “x” to the “ptr”

*ptr = &x;

Corrected code:

//v...

D)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared .

Next statement is defined such a pointer variable holds the address of the variable “x”.

The next statement is defined to assign the value of “x” to be “100” in the “ptr”. The next statement is used to display the value of “x”.

Given statements:

//variable declaration

int x, *ptr;

//assign the address of the x to the pointer

ptr = &x;

//assign the value of x to be 100

ptr = 100; // Store 100 in x

//display the value of x

cout << x ...

E)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined and declared with value.

Next is a display statement.

Displays the third element of the array using pointers.

Given statements:

//array declaration

int numbers[] = { 10, 20 , 30, 40 , 50 };

//display statement

cout << "The third element in the array is ";

//displays third value present in the array.

cout << *numbers + 3 << endl;

Corrected code:

//array ...

F)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined to hold “20” values and a pointer variable “iptr” is declared.

Next statement is assigning the value of the array to a pointer.

Next statement is to perform a multiplication operation using a pointer variable which is invalid.

Given statements:

/Variable declaration to hold 20 values and a pointer variable that holds zero address /

int values[20] , iptr;

//assign the value to a pointer variable

iptr = values;

//perform multiplication operation

iptr ...

G)

Explanation of Solution

Analysis of the given statement:

A variable of double data type is declared.

The next statement assigns the address of the variable to a variable of type integer.

Given statements:

//variable declaration

double level;

//address of pointer variable is assigned to a variable

int dptr = &level

Error in the above statement:

The address of the variable “level” of &...

H)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

In the next statement a variable of integer data type is declared.

Given statements:

//variable declaration and definition

int *iptr = &ivalue;

//variab...

I)

Explanation of Solution

Analysis of the given statement:

A function named “doubleVal” is passed with an integer type variable “val”.

The parameter value that is passed is multiplied by two.

Given statements:

//method definition

void doubleVal (int val) //line 1

{

//multiply the val by 2

val = 2; //line 2

}

Error p...

J)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...

K)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared.

The memory for pointer variable is allocated dynamically.

Value “100” is assigned to the pointer variable.

Given statements:

//pointer variable declared with zero address

int *pint; //line 1

//dynamically allocate memory space

pint = new int; //line 2

//assign the value 100 to the pointer variable

pint = 100; //line 3

Error...

L)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

An array of 100 elements gets allocated dynamically.

De-allocation of the dynamically allocated memory.

Given statements:

//pointer variable that is assigned with zero address

int pint; // line 1

//dynamically allocate the array

pint = new int[100]; // line 2

/Code that processes the array.

.

.

.

.

.

.

.

.

.

*/

// Free the memory

delete pint; // line 3

Error present in the above statement:

The declared variable is an array pointer, In “Line 3”, “delete” operation is defined for the array pointer is invalid...

M)

Explanation of Solution

Analysis of the given statement:

A method named “getNum()” is provided with a definition.

Variable named “wholeNum” is declared of integer data type.

The user is prompted to enter a number and get it as an input.

The address of the variable “wholeNum” is returned.

Given statements:

//method definition

int *getNum()//line 1

{

//variable declaration

int whol...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 4

Expert Solution & Answer

Chapter 10, Problem 30RQE

A)

Explanation of Solution

Purpose of the given statement:

The purpose of the statement is to declare a pointer variable as a null pointer.

Syntax error:

An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

B)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared. Next statement is defined such a pointer variable holds the address of the variable “x”.

Given statements:

//variable declaration

int x, *ptr;//line 1

//assign the address to a pointer variable

C)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is defined. Next statement is defined with a pointer variable to hold the address of the variable “x”.

Given statements:

//variable declaration

int x , * ptr;

//assign the address of “x” to the “ptr”

*ptr = &x;

Corrected code:

//v...

D)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared .

Next statement is defined such a pointer variable holds the address of the variable “x”.

The next statement is defined to assign the value of “x” to be “100” in the “ptr”. The next statement is used to display the value of “x”.

Given statements:

//variable declaration

int x, *ptr;

//assign the address of the x to the pointer

ptr = &x;

//assign the value of x to be 100

ptr = 100; // Store 100 in x

//display the value of x

cout << x ...

E)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined and declared with value.

Next is a display statement.

Displays the third element of the array using pointers.

Given statements:

//array declaration

int numbers[] = { 10, 20 , 30, 40 , 50 };

//display statement

cout << "The third element in the array is ";

//displays third value present in the array.

cout << *numbers + 3 << endl;

Corrected code:

//array ...

F)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined to hold “20” values and a pointer variable “iptr” is declared.

Next statement is assigning the value of the array to a pointer.

Next statement is to perform a multiplication operation using a pointer variable which is invalid.

Given statements:

/Variable declaration to hold 20 values and a pointer variable that holds zero address /

int values[20] , iptr;

//assign the value to a pointer variable

iptr = values;

//perform multiplication operation

iptr ...

G)

Explanation of Solution

Analysis of the given statement:

A variable of double data type is declared.

The next statement assigns the address of the variable to a variable of type integer.

Given statements:

//variable declaration

double level;

//address of pointer variable is assigned to a variable

int dptr = &level

Error in the above statement:

The address of the variable “level” of &...

H)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

In the next statement a variable of integer data type is declared.

Given statements:

//variable declaration and definition

int *iptr = &ivalue;

//variab...

I)

Explanation of Solution

Analysis of the given statement:

A function named “doubleVal” is passed with an integer type variable “val”.

The parameter value that is passed is multiplied by two.

Given statements:

//method definition

void doubleVal (int val) //line 1

{

//multiply the val by 2

val = 2; //line 2

}

Error p...

J)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...

K)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared.

The memory for pointer variable is allocated dynamically.

Value “100” is assigned to the pointer variable.

Given statements:

//pointer variable declared with zero address

int *pint; //line 1

//dynamically allocate memory space

pint = new int; //line 2

//assign the value 100 to the pointer variable

pint = 100; //line 3

Error...

L)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

An array of 100 elements gets allocated dynamically.

De-allocation of the dynamically allocated memory.

Given statements:

//pointer variable that is assigned with zero address

int pint; // line 1

//dynamically allocate the array

pint = new int[100]; // line 2

/Code that processes the array.

.

.

.

.

.

.

.

.

.

*/

// Free the memory

delete pint; // line 3

Error present in the above statement:

The declared variable is an array pointer, In “Line 3”, “delete” operation is defined for the array pointer is invalid...

M)

Explanation of Solution

Analysis of the given statement:

A method named “getNum()” is provided with a definition.

Variable named “wholeNum” is declared of integer data type.

The user is prompted to enter a number and get it as an input.

The address of the variable “wholeNum” is returned.

Given statements:

//method definition

int *getNum()//line 1

{

//variable declaration

int whol...

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Answer 5

Expert Solution & Answer

Answer 6

Expert Solution & Answer

Answer 7

Chapter 10, Problem 30RQE

A)

Explanation of Solution

Purpose of the given statement:

The purpose of the statement is to declare a pointer variable as a null pointer.

Syntax error:

An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

B)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared. Next statement is defined such a pointer variable holds the address of the variable “x”.

Given statements:

//variable declaration

int x, *ptr;//line 1

//assign the address to a pointer variable

C)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is defined. Next statement is defined with a pointer variable to hold the address of the variable “x”.

Given statements:

//variable declaration

int x , * ptr;

//assign the address of “x” to the “ptr”

*ptr = &x;

Corrected code:

//v...

D)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared .

Next statement is defined such a pointer variable holds the address of the variable “x”.

The next statement is defined to assign the value of “x” to be “100” in the “ptr”. The next statement is used to display the value of “x”.

Given statements:

//variable declaration

int x, *ptr;

//assign the address of the x to the pointer

ptr = &x;

//assign the value of x to be 100

ptr = 100; // Store 100 in x

//display the value of x

cout << x ...

E)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined and declared with value.

Next is a display statement.

Displays the third element of the array using pointers.

Given statements:

//array declaration

int numbers[] = { 10, 20 , 30, 40 , 50 };

//display statement

cout << "The third element in the array is ";

//displays third value present in the array.

cout << *numbers + 3 << endl;

Corrected code:

//array ...

F)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined to hold “20” values and a pointer variable “iptr” is declared.

Next statement is assigning the value of the array to a pointer.

Next statement is to perform a multiplication operation using a pointer variable which is invalid.

Given statements:

/Variable declaration to hold 20 values and a pointer variable that holds zero address /

int values[20] , iptr;

//assign the value to a pointer variable

iptr = values;

//perform multiplication operation

iptr ...

G)

Explanation of Solution

Analysis of the given statement:

A variable of double data type is declared.

The next statement assigns the address of the variable to a variable of type integer.

Given statements:

//variable declaration

double level;

//address of pointer variable is assigned to a variable

int dptr = &level

Error in the above statement:

The address of the variable “level” of &...

H)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

In the next statement a variable of integer data type is declared.

Given statements:

//variable declaration and definition

int *iptr = &ivalue;

//variab...

I)

Explanation of Solution

Analysis of the given statement:

A function named “doubleVal” is passed with an integer type variable “val”.

The parameter value that is passed is multiplied by two.

Given statements:

//method definition

void doubleVal (int val) //line 1

{

//multiply the val by 2

val = 2; //line 2

}

Error p...

J)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...

K)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared.

The memory for pointer variable is allocated dynamically.

Value “100” is assigned to the pointer variable.

Given statements:

//pointer variable declared with zero address

int *pint; //line 1

//dynamically allocate memory space

pint = new int; //line 2

//assign the value 100 to the pointer variable

pint = 100; //line 3

Error...

L)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

An array of 100 elements gets allocated dynamically.

De-allocation of the dynamically allocated memory.

Given statements:

//pointer variable that is assigned with zero address

int pint; // line 1

//dynamically allocate the array

pint = new int[100]; // line 2

/Code that processes the array.

.

.

.

.

.

.

.

.

.

*/

// Free the memory

delete pint; // line 3

Error present in the above statement:

The declared variable is an array pointer, In “Line 3”, “delete” operation is defined for the array pointer is invalid...

M)

Explanation of Solution

Analysis of the given statement:

A method named “getNum()” is provided with a definition.

Variable named “wholeNum” is declared of integer data type.

The user is prompted to enter a number and get it as an input.

The address of the variable “wholeNum” is returned.

Given statements:

//method definition

int *getNum()//line 1

{

//variable declaration

int whol...

Answer 8

Chapter 10, Problem 30RQE

A)

Explanation of Solution

Purpose of the given statement:

The purpose of the statement is to declare a pointer variable as a null pointer.

Syntax error:

An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

Answer 9

Chapter 10, Problem 30RQE

A)

Explanation of Solution

Purpose of the given statement:

The purpose of the statement is to declare a pointer variable as a null pointer.

Syntax error:

An error which is occurred on the source code of a program is referred as “syntax error”; because the computer programs are strictly follows the syntax rules, if the code fails to prove its language syntax format then the compiler will throws an error...

Answer 10

B)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared. Next statement is defined such a pointer variable holds the address of the variable “x”.

Given statements:

//variable declaration

int x, *ptr;//line 1

//assign the address to a pointer variable

Answer 11

B)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared. Next statement is defined such a pointer variable holds the address of the variable “x”.

Given statements:

//variable declaration

int x, *ptr;//line 1

//assign the address to a pointer variable

Answer 12

C)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is defined. Next statement is defined with a pointer variable to hold the address of the variable “x”.

Given statements:

//variable declaration

int x , * ptr;

//assign the address of “x” to the “ptr”

*ptr = &x;

Corrected code:

//v...

Answer 13

C)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is defined. Next statement is defined with a pointer variable to hold the address of the variable “x”.

Given statements:

//variable declaration

int x , * ptr;

//assign the address of “x” to the “ptr”

*ptr = &x;

Corrected code:

//v...

Answer 14

D)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared .

Next statement is defined such a pointer variable holds the address of the variable “x”.

The next statement is defined to assign the value of “x” to be “100” in the “ptr”. The next statement is used to display the value of “x”.

Given statements:

//variable declaration

int x, *ptr;

//assign the address of the x to the pointer

ptr = &x;

//assign the value of x to be 100

ptr = 100; // Store 100 in x

//display the value of x

cout << x ...

Answer 15

D)

Explanation of Solution

Analysis of the given statement:

In the given statement, a variable “x” of integer data type is declared, a pointer variable “ptr” is declared .

Next statement is defined such a pointer variable holds the address of the variable “x”.

The next statement is defined to assign the value of “x” to be “100” in the “ptr”. The next statement is used to display the value of “x”.

Given statements:

//variable declaration

int x, *ptr;

//assign the address of the x to the pointer

ptr = &x;

//assign the value of x to be 100

ptr = 100; // Store 100 in x

//display the value of x

cout << x ...

Answer 16

E)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined and declared with value.

Next is a display statement.

Displays the third element of the array using pointers.

Given statements:

//array declaration

int numbers[] = { 10, 20 , 30, 40 , 50 };

//display statement

cout << "The third element in the array is ";

//displays third value present in the array.

cout << *numbers + 3 << endl;

Corrected code:

//array ...

Answer 17

E)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined and declared with value.

Next is a display statement.

Displays the third element of the array using pointers.

Given statements:

//array declaration

int numbers[] = { 10, 20 , 30, 40 , 50 };

//display statement

cout << "The third element in the array is ";

//displays third value present in the array.

cout << *numbers + 3 << endl;

Corrected code:

//array ...

Answer 18

F)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined to hold “20” values and a pointer variable “iptr” is declared.

Next statement is assigning the value of the array to a pointer.

Next statement is to perform a multiplication operation using a pointer variable which is invalid.

Given statements:

/Variable declaration to hold 20 values and a pointer variable that holds zero address /

int values[20] , iptr;

//assign the value to a pointer variable

iptr = values;

//perform multiplication operation

iptr ...

Answer 19

F)

Explanation of Solution

Analysis of the given statement:

In the given statements an array is defined to hold “20” values and a pointer variable “iptr” is declared.

Next statement is assigning the value of the array to a pointer.

Next statement is to perform a multiplication operation using a pointer variable which is invalid.

Given statements:

/Variable declaration to hold 20 values and a pointer variable that holds zero address /

int values[20] , iptr;

//assign the value to a pointer variable

iptr = values;

//perform multiplication operation

iptr ...

Answer 20

G)

Explanation of Solution

Analysis of the given statement:

A variable of double data type is declared.

The next statement assigns the address of the variable to a variable of type integer.

Given statements:

//variable declaration

double level;

//address of pointer variable is assigned to a variable

int dptr = &level

Error in the above statement:

The address of the variable “level” of &...

Answer 21

G)

Explanation of Solution

Analysis of the given statement:

A variable of double data type is declared.

The next statement assigns the address of the variable to a variable of type integer.

Given statements:

//variable declaration

double level;

//address of pointer variable is assigned to a variable

int dptr = &level

Error in the above statement:

The address of the variable “level” of &...

Answer 22

H)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

In the next statement a variable of integer data type is declared.

Given statements:

//variable declaration and definition

int *iptr = &ivalue;

//variab...

Answer 23

H)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

In the next statement a variable of integer data type is declared.

Given statements:

//variable declaration and definition

int *iptr = &ivalue;

//variab...

Answer 24

I)

Explanation of Solution

Analysis of the given statement:

A function named “doubleVal” is passed with an integer type variable “val”.

The parameter value that is passed is multiplied by two.

Given statements:

//method definition

void doubleVal (int val) //line 1

{

//multiply the val by 2

val = 2; //line 2

}

Error p...

Answer 25

I)

Explanation of Solution

Analysis of the given statement:

A function named “doubleVal” is passed with an integer type variable “val”.

The parameter value that is passed is multiplied by two.

Given statements:

//method definition

void doubleVal (int val) //line 1

{

//multiply the val by 2

val = 2; //line 2

}

Error p...

Answer 26

J)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...

Answer 27

J)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...

Answer 28

K)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared.

The memory for pointer variable is allocated dynamically.

Value “100” is assigned to the pointer variable.

Given statements:

//pointer variable declared with zero address

int *pint; //line 1

//dynamically allocate memory space

pint = new int; //line 2

//assign the value 100 to the pointer variable

pint = 100; //line 3

Error...

Answer 29

K)

Explanation of Solution

Analysis of the given statement:

A new pointer is declared.

The memory for pointer variable is allocated dynamically.

Value “100” is assigned to the pointer variable.

Given statements:

//pointer variable declared with zero address

int *pint; //line 1

//dynamically allocate memory space

pint = new int; //line 2

//assign the value 100 to the pointer variable

pint = 100; //line 3

Error...

Answer 30

L)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

An array of 100 elements gets allocated dynamically.

De-allocation of the dynamically allocated memory.

Given statements:

//pointer variable that is assigned with zero address

int pint; // line 1

//dynamically allocate the array

pint = new int[100]; // line 2

/Code that processes the array.

.

.

.

.

.

.

.

.

.

*/

// Free the memory

delete pint; // line 3

Error present in the above statement:

The declared variable is an array pointer, In “Line 3”, “delete” operation is defined for the array pointer is invalid...

Answer 31

L)

Explanation of Solution

Analysis of the given statement:

A pointer variable of integer data type is declared and defined to hold the address of an uninitialized variable.

An array of 100 elements gets allocated dynamically.

De-allocation of the dynamically allocated memory.

Given statements:

//pointer variable that is assigned with zero address

int pint; // line 1

//dynamically allocate the array

pint = new int[100]; // line 2

/Code that processes the array.

.

.

.

.

.

.

.

.

.

*/

// Free the memory

delete pint; // line 3

Error present in the above statement:

The declared variable is an array pointer, In “Line 3”, “delete” operation is defined for the array pointer is invalid...

Answer 32

M)

Explanation of Solution

Analysis of the given statement:

A method named “getNum()” is provided with a definition.

Variable named “wholeNum” is declared of integer data type.

The user is prompted to enter a number and get it as an input.

The address of the variable “wholeNum” is returned.

Given statements:

//method definition

int *getNum()//line 1

{

//variable declaration

int whol...

Answer 33

M)

Explanation of Solution

Analysis of the given statement:

A method named “getNum()” is provided with a definition.

Variable named “wholeNum” is declared of integer data type.

The user is prompted to enter a number and get it as an input.

The address of the variable “wholeNum” is returned.

Given statements:

//method definition

int *getNum()//line 1

{

//variable declaration

int whol...

Answer 34

Expert Solution & Answer

Answer 35

Expert Solution & Answer

Answer 36

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Answer 37

Ch. 10.5 - Prob. 10.1CP Ch. 10.5 - Write a statement defining a variable dPtr. The...Ch. 10.5 - List three uses of the symbol in C++.Ch. 10.5 - What is the output of the following program?...Ch. 10.5 - Rewrite the following loop so it uses pointer...Ch. 10.5 - Prob. 10.6CP Ch. 10.5 - Assume pint is a pointer variable. For each of the...Ch. 10.5 - For each of the following variable definitions,...Ch. 10.10 - Assuming array is an array of ints, which of the...Ch. 10.10 - Give an example of the proper way to call the...

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Explanation of Solution

Analysis of the given statement: A new pointer is declared and assigned. The second statement tries to dynamically allocate memory for the pointer that is defined. Given statements: //pointer variable declaration int *pint; //line 1 //dynamically allocate memory...

Explanation of Solution

Explanation of Solution

Explanation of Solution

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Chapter 10 Solutions

Analysis of the given statement:

A new pointer is declared and assigned.

The second statement tries to dynamically allocate memory for the pointer that is defined.

Given statements:

//pointer variable declaration

int *pint; //line 1

//dynamically allocate memory...