Solved

line 26: Parse Error, expecting `NUMBER'

Posted on 2004-10-06
10
408 Views
Last Modified: 2010-04-15
I am trying to figure where my error is coming from.  This program is supposed to give the equivalents of five currencies in USD.  Here is the code:

#include <stdio.h>
main ()
{
      float ad;
      float cd;
      float dk;
      float nk;
      float tb;
      
      int ans;
      
      do
      {
            printf("***** CURRENCY CONVERTER *****");
            printf("1 - Australian Dollars \n");
            printf("2 - Canadian Dollars \n");
            printf("3 - Danish Krone \n");
            printf("4 - Norwegian Kroner \n");
            printf("5 - Thai Bhat \n\n");
            scanf(" %d", &ans);
      }
            while ((ans!='1')&&(ans!='2')&&(ans!='3')&&
                   (ans!='4')&&(ans!='5'));
      switch (ans)
      {
            case ('1') : {ad = 1.38274;
                        printf("\n The equivalent in US Dollars is %.2f", ad);
                        break;}
            case ('2') : {cd = 1.2629;
                        printf("\n The equivalent in US Dollars is %.2f", cd);
                        break;}
            case ('3') : {dk = 6.001;
                        printf("\n The equivalent in US Dollars is %.2f", dk);
                        break;}
            case ('4') : {nk = 6.692;
                        printf("\n The equivalent is US Dollars is %.2f", nk);
                        break;}
            case ('5') : {tb = 41.36;
                        printf("\n The equivalent is US Dollars is %.2f", tb);
                        break;}
      }
      getch();
      return;  
}
0
Comment
Question by:JJ7717
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
10 Comments
 
LVL 45

Expert Comment

by:Kent Olsen
ID: 12243287


The code isn't particularly well structured, and that's probably leading to the "hiding" of this problem.

Take the ';' off of the while() statement.  You're probably seeing an "infinite loop" and this is the reason.


Good Luck,
Kent
0
 
LVL 5

Expert Comment

by:lwinkenb
ID: 12243427
Couple notes:

main should be declared as either
int main() or int main(int argc, char **argv)

Also you variable ans is declared as an int.  Therefore in your while loop you should not be comparing it against characters.  For instance, it should be while(ans != 1) not while(ans != '1').
Also you while loop is pretty worthless as it stand since it is considered empty.  The structure of a while loop should be:
while(condition)
{
//...
}

You while loop currently looks like:
while(condition);


0
 
LVL 5

Expert Comment

by:libin_v
ID: 12245415
Since there is a 'do' statement preceding the while I do think the ';' is neccessary
0
Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 9

Accepted Solution

by:
ankuratvb earned 125 total points
ID: 12245489
Do-While requires a semi-colon at the end of while.

The problem is the quotes surrounding the integer values 1-5;

Your while statement should be something like:

while ((ans!=1)&&(ans!=2)&&(ans!=3)&&
                (ans!=4)&&(ans!=5));
   
Similarly,remove the single quotes from the case statements as well.

case 1:

case 2:

etc.
0
 
LVL 16

Expert Comment

by:PaulCaswell
ID: 12246507
My compiler says to use:

     double ad;
     double cd;
     double dk;
     double nk;
     double tb;

...

Paul
0
 
LVL 12

Expert Comment

by:stefan73
ID: 12246875
Hi Kdo,
> The code isn't particularly well structured

Good point.
JJ7717, you have a lot of redundancy here. Think about using an array of structs instead:

struct currency{
    char* name;
    char* short_name;
    double rate;
}

then you can define all your currencies nicely:

struct currency all_currencies[]={
    {"Australian Dollar", "AUD", 1.38274},
    {"Euro", "EUR", 0.85345435},
};

...now you should know how to proceed: Loop to print the choices, do the appropriate calculations, etc.

Cheers!

Stefan
0
 

Author Comment

by:JJ7717
ID: 12248307
Thanks to everyone who commented on my problem.  I will put together the suggestions and retool my program.

John
0
 

Expert Comment

by:x25
ID: 12265658
The parse error you have is particularly because of the LPAREN `(' character found after the case keyword. The compiler interprets the value after the `case' as a number. And, hence, the Left parentheses you have is unexpected for the compiler.

When you enclose a digit number between single quotes in the case statement like (case '2': ), this is perfectly legal. However, their actual value is not 2 but actually the ASCII code number for the character 2, which is in fact  50. Which can be very misleading and "hidden" in your program.


0

Featured Post

Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

An Outlet in Cocoa is a persistent reference to a GUI control; it connects a property (a variable) to a control.  For example, it is common to create an Outlet for the text field GUI control and change the text that appears in this field via that Ou…
Windows programmers of the C/C++ variety, how many of you realise that since Window 9x Microsoft has been lying to you about what constitutes Unicode (http://en.wikipedia.org/wiki/Unicode)? They will have you believe that Unicode requires you to use…
The goal of this video is to provide viewers with basic examples to understand and use structures in the C programming language.
Video by: Grant
The goal of this video is to provide viewers with basic examples to understand and use for-loops in the C programming language.

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question