Thread: C programing help with file precessing

Hello,
I have a test file which looks like following

-------------------------------------------------
file has fruits :: apple orange banana |
23 16 7 |
-------------------------------------------------
means it has 23 apples, 16 oranges and 7 banana. What I want is to,
store the fruit names and their respective numbers in a matrix or fruit names in an 1D array and numbers in another 1-D array so that I can pull particular info when ever I need.

Can you guys help or at least suggest how should I proceed?

Thanks

Hey,

in my opinion:

1) make a file

Code:

FILE *pfile;
pfile = fopen("file.txt","w");

2) make an 2-dim Array (using malloc)

3) access the file and store the information into the array.

I did not wrote any details but i you want further help tell me...

Brack,
I took long time to reply because I was rehearsing my C and was trying to do myself. The main problem I am running into is how to choose some particular portions of a the string and make a matrix out of it. What I mean is I want to make a matrix like

apple 23
banana 16
orange 7

but notice apple, banana and orange are embedded in the first line, so how to extract those from the whole string "file has fruits :: apple orange banana".

Thanks.

Originally Posted by sourabhsinha

What I want is to,
store the fruit names and their respective numbers in a matrix

Hash table - Wikipedia, the free encyclopedia

or fruit names in an 1D array and numbers in another 1-D array so that I can pull particular info when ever I need.

Parallel array - Wikipedia, the free encyclopedia

Can you guys help or at least suggest how should I proceed?

Thanks

fgets() and sscanf() together work for a majority of simple files.

Depending how many items need processing, the best way might be to make a small struct...

Code:

struct Fruit
  { char Name[24];  // name of fruit
     int   Count;         // how many
   } 

Fruit Bowl[100];

Read the names on the first pass of the file
Read the numbers on the second