Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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C
In this unit, you will create 3 functions:
- main(): Call print_stack() and then call f1(10).
- f1(unsigned int): Call print_stack(). Define a local string containing "ABCD". Call f2() passing the string variable as its parameter.
- f2(char *): Call print_stack().
Furthermore, define a macro OFFSET=32 in this unit and use that macro in place of the offset parameter whenever you call print_stack(). This helps you test your code using different offsets without having to change it throughout your code.
Make sure the code compiles and there must be no errors. I want to see the full output in the terminal running, so I know that the code compiles.
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Follow-up Question
There is an error on line 12. I need that error to be fixed. You can see that error on the image attached.
![### C Programming: Basic Stack Operations
#### Source Code
The following code snippet demonstrates basic stack operations using a C program:
```c
#include<stdio.h>
#include<stdlib.h>
#define OFFSET 32
int Top=-1, inp_array[OFFSET];
void push();
void pop();
void print_stack();
int main() {
int choice;
while(true) {
printf("\nOperations performed by Stack");
printf("\n1.push the element\n2.pop the element\n3.Display Stack\n4.End");
printf("\nInput the choice:");
scanf("%d",&choice);
switch(choice) {
case 1: push();
break;
case 2: pop();
break;
case 3: print_stack();
break;
case 4: exit(0);
default: printf("\nInvalid choice!!!");
}
}
}
```
#### Explanation and Error
- **Header Files and Constants**: Includes the standard input-output and standard library header files. Defines a constant `OFFSET` with a value of 32.
- **Global Variables**: Declares an integer `Top` initialized to -1 and an integer array `inp_array` sized by `OFFSET`.
- **Function Declarations**:
- `push()`: To add elements to the stack.
- `pop()`: To remove elements from the stack.
- `print_stack()`: To display elements in the stack.
- **Main Function**:
- Uses a `while` loop to continually perform stack operations based on user input.
- Prompts the user for a choice and executes corresponding functions.
- **Error Notice**: The code contains an error due to the use of `true` without declaration. C does not inherently recognize `true`. To resolve this, replace `while(true)` with `while(1)` for infinite loop functionality.
#### Compiler Output
On the right, the panel shows the compiler output:
- An error indicating `'true' undeclared` in the main function at line 12.
- Suggests declaring the identifier or using a valid alternative.
By correcting the undeclared identifier, the program can compile and execute without this specific error. Remember that C requires explicit declarations and does not implicitly recognize boolean values such as `true` or `false`.](https://content.bartleby.com/qna-images/question/e7ddc10c-4670-40fd-b02c-6a60c5fcc2f2/2b81bc29-a744-428b-9c9c-8cdb62842a13/pnivz6d_processed.png)
Transcribed Image Text:### C Programming: Basic Stack Operations
#### Source Code
The following code snippet demonstrates basic stack operations using a C program:
```c
#include<stdio.h>
#include<stdlib.h>
#define OFFSET 32
int Top=-1, inp_array[OFFSET];
void push();
void pop();
void print_stack();
int main() {
int choice;
while(true) {
printf("\nOperations performed by Stack");
printf("\n1.push the element\n2.pop the element\n3.Display Stack\n4.End");
printf("\nInput the choice:");
scanf("%d",&choice);
switch(choice) {
case 1: push();
break;
case 2: pop();
break;
case 3: print_stack();
break;
case 4: exit(0);
default: printf("\nInvalid choice!!!");
}
}
}
```
#### Explanation and Error
- **Header Files and Constants**: Includes the standard input-output and standard library header files. Defines a constant `OFFSET` with a value of 32.
- **Global Variables**: Declares an integer `Top` initialized to -1 and an integer array `inp_array` sized by `OFFSET`.
- **Function Declarations**:
- `push()`: To add elements to the stack.
- `pop()`: To remove elements from the stack.
- `print_stack()`: To display elements in the stack.
- **Main Function**:
- Uses a `while` loop to continually perform stack operations based on user input.
- Prompts the user for a choice and executes corresponding functions.
- **Error Notice**: The code contains an error due to the use of `true` without declaration. C does not inherently recognize `true`. To resolve this, replace `while(true)` with `while(1)` for infinite loop functionality.
#### Compiler Output
On the right, the panel shows the compiler output:
- An error indicating `'true' undeclared` in the main function at line 12.
- Suggests declaring the identifier or using a valid alternative.
By correcting the undeclared identifier, the program can compile and execute without this specific error. Remember that C requires explicit declarations and does not implicitly recognize boolean values such as `true` or `false`.
Solution
by Bartleby Expert
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
There is an error on line 12. I need that error to be fixed. You can see that error on the image attached.
Transcribed Image Text:### C Programming: Basic Stack Operations
#### Source Code
The following code snippet demonstrates basic stack operations using a C program:
```c
#include<stdio.h>
#include<stdlib.h>
#define OFFSET 32
int Top=-1, inp_array[OFFSET];
void push();
void pop();
void print_stack();
int main() {
int choice;
while(true) {
printf("\nOperations performed by Stack");
printf("\n1.push the element\n2.pop the element\n3.Display Stack\n4.End");
printf("\nInput the choice:");
scanf("%d",&choice);
switch(choice) {
case 1: push();
break;
case 2: pop();
break;
case 3: print_stack();
break;
case 4: exit(0);
default: printf("\nInvalid choice!!!");
}
}
}
```
#### Explanation and Error
- **Header Files and Constants**: Includes the standard input-output and standard library header files. Defines a constant `OFFSET` with a value of 32.
- **Global Variables**: Declares an integer `Top` initialized to -1 and an integer array `inp_array` sized by `OFFSET`.
- **Function Declarations**:
- `push()`: To add elements to the stack.
- `pop()`: To remove elements from the stack.
- `print_stack()`: To display elements in the stack.
- **Main Function**:
- Uses a `while` loop to continually perform stack operations based on user input.
- Prompts the user for a choice and executes corresponding functions.
- **Error Notice**: The code contains an error due to the use of `true` without declaration. C does not inherently recognize `true`. To resolve this, replace `while(true)` with `while(1)` for infinite loop functionality.
#### Compiler Output
On the right, the panel shows the compiler output:
- An error indicating `'true' undeclared` in the main function at line 12.
- Suggests declaring the identifier or using a valid alternative.
By correcting the undeclared identifier, the program can compile and execute without this specific error. Remember that C requires explicit declarations and does not implicitly recognize boolean values such as `true` or `false`.
Solution
by Bartleby Expert
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