Stub Program for Problem 4 HW 2, C (gcc)

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// Stub program for Problem 4 HW 2 Fall 2016

#include  <stdio.h>

#define SIZE 30
#define ERROR -1

//////////////////////////////////////////////////////////////////////
// Function name: int2binstr
//
// 	Description: Converts an unsigned integer to a string representing
//   the binary value of that integer.
//
// 	Input parameters:
//   unsigned int num, the input unsigned integer
//
//   Output parameters:
//   char* string, the pointer to the output string.
//
// 	Returns:
//	
	void int2binstr(unsigned int num, char* string)
{
    // Your code goes here!
    int i;
        unsigned int mask;
        for (i=0; i<32; i++) {
            mask = (1<<(31-i));
            if (mask&num) {
                string[i] = '1';
            } else {
                string[i] = '0';
            } 
        }
        string[32] = 0;
}

int main(void)
{
    // number that we read in from stdin
    unsigned int inputNumber;
    // output array for the string
    char outputString[SIZE] = "Nothing Yet";

printf("\n*** Stub program for Problem 4 -- int2binstr ***\n\n");
    
    // First read in an integer
    scanf("%d\n", &inputNumber);
    
    // print out the input number
    printf("Read in the value %d.\n\n", inputNumber);
    
    // Call your routine
    int2binstr(inputNumber, outputString);
        
    // Print out the result
    printf("After function call the string is \"%s\".\n\n", outputString);
    
    return 0;
}

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Compilation time: 0.12 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 0,34 sec