Thread: switch case statement ignoring input from another function

Hello, I have a question regarding the following code. I have two functions in it, one called SetupReverse() and the other printReverse(char str[])

SetupReverse allocates memory for an user to enter a sentence. and printReverse takes that sentence and prints it in reverse. i.e. "C programming language is cool" becomes "cool is language programming C"

It was working until I decided to include a switch case statement in main to make it more interactive and now it doesn't even prompt me to enter the sentence, it skips it completely. Why?

Code:

#include <stdio.h>#include <string.h>
#include <ctype.h>
#include <stdlib.h>




/* Function that prints sentence in reverse
 * 'Hello to the world' becomes
 * 'world the to Hello'
 * */
void dogcat();
/*Sets up the text that will be reversed*/
void SetupReverse();
/*Reverses the text that was typed in SetupReverse() function*/
void printReverse(char str[]);


/*Start 
 * of 
 * Main
 * */


int main(int argc, char **argv)
{
	int option;
	printf("Please Select one of the following options: \n");
	printf("1	Cats and Dogs\n");
	printf("2	Reverse Text\n\n");
	scanf("%d",&option);
	
	while(1){
		
		switch(option)
		{	
			case 1:
			dogcat();
			break;
			
			case 2:
			SetupReverse();
			break;
			
			default:
			printf("Invalid Option");
			break;
			
		}
		
		printf("\n\nPlease Select one of the following options: \n");
		printf("1	Cats and Dogs\n");
		printf("2	Reverse Text\n");
		scanf("%d",&option);
	}
	return 0;
}


/*End
 * of
 * Main
 * */


void dogcat(){
	
	int i;
    int array[100];
    
    for(i = 1; i <= 100; i++)
    {
        array[i] = i;
    }


    for(i = 1; i <= 100; i++)
    {
        if(array[i]%5 == 0 && array[i]%3 == 0){printf("dogcat ");}
        
        else if(array[i]%3 == 0){printf("cat ");}
        
        else if(array[i]%5 == 0){printf("dog ");}
        
        else{printf("%d ",array[i]);}
    }
	
}


void SetupReverse()
{
	
	int size = 1;
	char *str;
	str = (char*) malloc(size*sizeof(char));
	
	char c;
    
    int t = 0;
    int cnt = 0;
    int len;
	
		
	printf("Please input a sentence: \n");
		
	
	c = getchar();


    while(c!='\n') {
        if(cnt > size) {
            str = (char*) realloc(str,2*cnt);
        }
		
        str[t] = c;
        c = getchar();
        t++;
        cnt++;
    }
	
	str[t]='\0';
	
	
	
    printf("\nThe string is: \n %s \n",str);
    len = strlen(str);
	
    printf("\nThe size is: \n %d \n\n",len);
	
	printf("\nThe string in Reverse is: \n \n");
	
	printReverse(str);
	printf("\n\n");
	
	
	free(str);
	
	
	
}


void printReverse(char str[])
{
    int length = strlen(str);
	char newStr[length];
	strcpy(newStr,str);
    // Traverse string from end
    int i;
    for (i = length - 1; i >= 0; i--) {
        if (newStr[i] == ' ') {
 
            // putting the NULL character at the 
            // position of space characters for
            // next iteration.          
            newStr[i] = '\0';
 
            // Start from next charatcer     
            printf("%s ", &(newStr[i]) + 1);
        }
    }
 
    // printing the last word
    printf("%s", newStr);
}