New to C programming

[Darkinyuasha1]

I need help in a program i build for C, which prints out the names of the numbers i input into the program. I did this by first splitting the digits, and put them in seperate registers in an array. i got lost in how i was going to convert the numbers to letters.

               #include <stdio.h>       
    void main() {
     int temp,  num, count, reg[4],remainder;
     
             printf("Enter Number\n");
              
               scanf("%d",&num);
               
                   temp = num;
               count = 0;

               while(temp !=0)
               { temp = temp/ 10;
                   remainder = temp % 10;
                   ++count; 
                  if(count == 1)
                         reg[0] = remainder;
                   else if(count == 2)
                         reg[1] = remainder;
                     else 
                          reg[2] = remainder; }
                          
                switch(reg[0])
                  {
                    case 1:  
                             printf("one\n");
                            break;
                     case 2:
                             printf("two\n");
                             break;
                     case 0: 
                              printf("error");
                              break;
                     default: 
                              printf("three");
                              }
                          }

the switch is to test my loop, but it kept saying error soo i couldn't figure out how come it keeps going to 0.

#include <stdio.h>
    void main()
    {
       int count, remainder, num, reg[2],one,two,three,four,five,six,seven,eight,nine,i;
       int word[11] = {one, two, three, four, five, six, seven, eight, nine }; 
                   

             printf("what is your number?\n");
                    scanf("%d",&num);
            printf("how many digits, and yes this program is stupid\n"); // 2 digits only 4 now..
                    scanf("%d",&count);
                
	switch(count)
                    {
                       case  1 :
                          do
                          { remainder = num % 10;
                            reg[0] = remainder;
                            num = num / 10;
                           }while(num !=0);
                         

                                  break;

                   case 2 :
                           do
                           { remainder = num % 10;
                             if(num >= 10)
                                reg[1] = remainder;
                              else
                                  if(num < 10){
                                      reg[0] = remainder; }
                                      num = num / 10;
		} while(num !=0);

                                    break;
                            default:
                                     printf("Unavailable to determine\n");
                                      break;
                                  } 
                            for( i=count, i !=0; i = i - 1){ 
                                     switch(reg[0])
                               count 1:    
                                      printf("%d",word[0]);
                                     break;
                                              }
                        }

my other program which i still can't figure out

[swoopy]

>              count = 0;

>               while(temp !=0)
>               { temp = temp/ 10;
>                   remainder = temp % 10;
>                   ++count; 
>                  if(count == 1)
>                         reg[0] = remainder;
>                   else if(count == 2)
>                         reg[1] = remainder;
>                     else 
>                          reg[2] = remainder; }

Maybe:

              count = 0;

               while(temp !=0)
               {
                   remainder = temp % 10;
                   temp = temp/ 10;
                   reg[count] = remainder;
                   ++count; 
               }

[Darkinyuasha1]

thanks for that part of my code ^_^ ,but im still having a hard time making the values into words.

[Prelude]

>im still having a hard time making the values into words.
This question has popped up before. A forum search might do you some good.

[swoopy]

> int word[11] = {one, two, three, four, five, six, seven, eight, nine };

       char *word[10] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine" };

Make word a array of ten char pointers to the words as is shown above (versus the int array that you have). Then use a for-loop to loop thru the reg array printing the word equivalent of the number stored at each index, and you're done.

[Darkinyuasha1]

gracias mucho, that all i needed to know ^_^

[swoopy]

> void main()
Just one more thing. Always use:

int main(void)

See this Faq entry for why: What's the difference between... > main() / void main() / int main() / int main(void) / int main(int argc, char *argv[])

[Darkinyuasha1]

i still get some errors ....

  #include <stdio.h>
   int  main(void) {
     int temp,  num, count, i,reg[5],remainder;
     char *word[11] = {"one","two","three","four","five","six","seven","eight","nine"};
             printf("Enter Number\n");
              
               scanf("%d",&num);
               
                   temp = num;
                   count = 0;

               while(temp !=0)
               {
                   remainder = temp % 10;
                   temp = temp/ 10;
                   reg[count] = remainder;
                   ++count; 
               }
                  for( i=1; i<=count; ++i) {      
                   
                   switch(i){
                        case 1:
                                switch(reg[0]){
               case 1:
                       printf("%s",word[0]);
                       break;
               case 2:
                       printf("%s",word[1]);
                       break;
               case 3:
                       printf("%s",word[2]);
                       break;
                       
               case 4: 
                       printf("%s",word[3]);
                       break;
               case 5:
                       printf("%s",word[4]);
                       break;
               case 6: 
                       printf("%s",word[5]);
                       break;
               case 7:
                       printf("%s",word[6]);
                       break;
               case 8:
                       printf("%s",word[7]);
                       break;
               default:
                       printf("%s",word[8]);
                       break;
                       }    
                       break;
            case 2 :
                     switch(reg[1]){
               case 1:
                       printf("%s",word[0]);
                       break;
               case 2:
                       printf("%s",word[1]);
                       break;
               case 3:
                       printf("%s",word[2]);
                       break;
                       
               case 4: 
                       printf("%s",word[3]);
                       break;
               case 5:
                       printf("%s",word[4]);
                       break;
               case 6: 
                       printf("%s",word[5]);
                       break;
               case 7:
                       printf("%s",word[6]);
                       break;
               case 8:
                       printf("%s",word[7]);
                       break;
               default:
                       printf("%s",word[8]);
                       break;}  
                        break;
            case 3:
                       switch(reg[2]){
               case 1:
                       printf("%s",word[0]);
                       break;
               case 2:
                       printf("%s",word[1]);
                       break;
               case 3:
                       printf("%s",word[2]);
                       break;
                       
               case 4: 
                       printf("%s",word[3]);
                       break;
               case 5:
                       printf("%s",word[4]);
                       break;
               case 6: 
                       printf("%s",word[5]);
                       break;
               case 7:
                       printf("%s",word[6]);
                       break;
               case 8:
                       printf("%s",word[7]);
                       break;
               default:
                       printf("%s",word[8]);
                       break;}  
                        break;
             case 4: 
                        switch(reg[3]){
               case 1:
                       printf("%s",word[0]);
                       break;
               case 2:
                       printf("%s",word[1]);
                       break;
               case 3:
                       printf("%s",word[2]);
                       break;
                       
               case 4: 
                       printf("%s",word[3]);
                       break;
               case 5:
                       printf("%s",word[4]);
                       break;
               case 6: 
                       printf("%s",word[5]);
                       break;
               case 7:
                       printf("%s",word[6]);
                       break;
               case 8:
                       printf("%s",word[7]);
                       break;
               default:
                       printf("%s",word[8]);
                       break;}       
                           break;
               default:
                        print("i do not know");
                           break;
                           }
                    }
                }

[swoopy]

> while(temp !=0)
I didn't say this earlier, but I'd put an extra check here to be sure you don't overrun the reg array:

               while(temp !=0 && count < 5)

> for( i=1; i<=count; ++i) {
Arrays are indexed starting at 0. So

                  for( i=0; i<count; ++i) {

>                   switch(i){
>                        case 1:
>                                switch(reg[0]){

You only need one switch-case, not two. Switch on the value of reg[i].

[King Mir]

Don't even use a swich.

Do this:

for( i=0; i<count; ++i)
     printf("%s",word[ reg[i] ]);

Assuming count remains less than 5.

[Salem]

Some effort on the indentation consistency wouldn't go amiss either.

Do NOT mix spaces and tabs when you post your code to message boards. Your fancy code editor might be able to cope, but message boards usually make a mess of the result.

[SKeane]

This may sound like a stupid question, but do you have to input and store the number as an integer? It would make you program so much easier if you could inout the number and store it in a character array. For one thing, you'd know how many digits there were in the number.

[Darkinyuasha1]

This may sound like a stupid question, but do you have to input and store the number as an integer? It would make you program so much easier if you could inout the number and store it in a character array. For one thing, you'd know how many digits there were in the number.

explain that a little better to me, and i think the answer is yea they got to be inputed.

this is the program i have now soo far i modify

#include <stdio.h>
   int  main(void) {
     int temp,  num, count, i,reg[5],remainder;
     char *word[11] = {"one","two","three","four","five","six","seven","eight","nine"};
             printf("Enter Number\n");
              
               scanf("%d",&num); // input number
               
                   temp = num;
                   count = 0;

         while(temp !=0 && count < 5)  //divides number and puts it in a special container
               {
                   remainder = temp % 10;//which prints the numbers that were broken
                   temp = temp/ 10;      //up into single digits to be printed into words
 
                   reg[count] = remainder; // base on reg
                   ++count; 
               }
                
            for( i=0; i<count; ++i)
     printf("%s",word[ reg[i] ]);  
     }

[swoopy]

> char *word[11] = {"one",
You need a "zero" in there, don't you think?

I'll leave it to you to figure out how to print the output in the correct order.

[Darkinyuasha1]

okey and yea i gotta fix that