Comapring values in an array.

This is a discussion on Comapring values in an array. within the C Programming forums, part of the General Programming Boards category; I'm reading in a test file and storing the information into a 2d array (declared with char array[99][99] I've then ...

  1. #1
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    Comapring values in an array.

    I'm reading in a test file and storing the information into a 2d array (declared with char array[99][99]

    I've then passed this array to another funtion and am comparing it to something and I'm getting compilation errors.

    Here is the line of code:

    while(array[i][b] != 32);

    And here is the error - 16 C:\Documents and Settings\Chrisss\My Documents\C\test.c invalid use of array with unspecified bounds

    What am I doing wrong?

    Thanks for any help

  2. #2
    Gawking at stupidity
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    You're going to have to show more code than that. Maybe the way you're calling the function and then the entire function in which the error occurs.
    If you understand what you're doing, you're not learning anything.

  3. #3
    and the hat of wrongness Salem's Avatar
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    No idea - post more code.
    If you dance barefoot on the broken glass of undefined behaviour, you've got to expect the occasional cut.
    If at first you don't succeed, try writing your phone number on the exam paper.
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  4. #4
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    Ok well here is the full code so far:

    Code:
    #include <stdio.h>
    
    void parse(char array[][],int a)
    {
         int z = 0;
         int b = 0;
         int i = 0;
         char string1[100];
         char string2[100];
         char string3[100];
         char string4[100];
         for(i=0;i<a;i++)
         {
                         b=0;
                         z=0;
               while(array[i][b] != 32)
               {
                      string1[z] = array[i][b];     
                      b++;
                      z++;
                      }
                      
                          
    }                    
     }
    
    
    int main(int argc, char *argv[])
    {
        int x;
        int a = 0;
        int b = 0;
        FILE *fp;
        char array[99][99];
        fp = fopen(argv[1], "r");
        while ( (x = fgetc(fp)) != EOF)
         {
               if(x == ';'){
                    array[a][b] = x;
                    b=0;
                    a++;
                    while ( (x = fgetc(fp)) && (x !=EOF))
                    {
                          if(x == 10)
                          {   
                               break;
                          }
                          
                    }
               }
    
               else
               {
                   if(x == 10)
                   {
                        array[a][b] = '\n';
                        a++;
                        b=0;
                        
                   }
                   else
                   {
                        array[a][b] = x;
                        b++;
                   }
               }
          }   
          parse(array,a);       
    }

  5. #5
    Code Goddess Prelude's Avatar
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    >void parse(char array[][],int a)
    Only the size of the first dimension can be omitted. Every other dimension needs to be filled and correct:
    Code:
    void parse(char array[][99],int a)
    My best code is written with the delete key.

  6. #6
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    Excellent, cheers.

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