using c language

Question

ASCII (American Standard Code for Information Interchange) was originally developed as a

binary to text translation for less complex computer systems. Today, it is an industry standard that allows

not only 8 bit/1 byte binary translations but synonymous decimal, binary, and hex number system

translations as well.

Create a program that can convert a character string to a set of integer values to demonstrate one

possible translation using ASCII

Build a Main() function with all dependent header files. Make a preprocessor define with

value 10.

 In the Main, prompt the user to enter a character string. Store it dynamically in memory

(Use the define above as a max string length). 

 Prototype a function named Convert() that accepts a pointer to char and returns a

pointer to int. 

 Convert() - this function will iterate through every character of the string until the null

(\0) character is reached. In each iteration, copy the character into an integer variable.

Assign the variable to a dynamically (again in memory with max number being define

above) created integer array. Return a reference to the dynamic memory integer array.

 Print out each number in the dynamic memory integer array to the console. (/2)

 Prototype a function named Print() that accepts a pointer to int. This function has no

return value. 

 Print() - this function will print the dynamic int array to a file. Each value must be

separated by a space. Remember to iterate and go value by value, all valid values are

greater than or equal to 0. 

Answer 1

Here's my implementation. Let me know if you have any questions about any of the code, especially around the pointer manipulation. Pointers in C can be tricky.

#include <stdio.h>

#define MAX_LENGTH 10

int *Convert(const char *str) {

int *numbers = (int *)calloc(MAX_LENGTH, sizeof(int));

for (int i=0; i<MAX_LENGTH && str[i] != 0; i++) {

numbers[i] = str[i];

}

return numbers;

}

void Print(int *numbers) {

for (int i=0; i<MAX_LENGTH && numbers[i] >= 0; i++) {

printf("%d ", numbers[i]);

}

printf("\n");

}

int main(void) {

printf("Type something:\n");

char *buffer = malloc(MAX_LENGTH * sizeof(char));

fgets(buffer, MAX_LENGTH, stdin);

int *numbers = Convert(buffer);

Print(numbers);

free(numbers);

free(buffer);

return 0;

}

This is what the output looks like:

> ./main

Type something:

Hello

72 101 108 108 111 10 0 0 0 0

>

> ./main

Type something:

Good night to you!

71 111 111 100 32 110 105 103 104 0

>