Programming C - searching for same words from text file

[dafrancesko]

Hi,

I would be glad if you would help me with this program:

Task:

User will enter 4-7 letters (for example 'ADFG').

I have detached text file which contains about several thousand of words

(for example:

BDF
BGFK
JKLICV
NGJKL
POIUEVBN

etc.)

-words are written in list

I want to make program, which find words from this text file, which are same letters which user entered

(In this case, when I entered ADFG it will find and display BDF, BGFK, NGJKL).

[weaknessforcats]

I would start by writing a function:

int Test(char token, char* str);
 

This function would take a char token and a string str. The function returns a non-zero value (TRUE) if the token is in the str and 0 (FALSE) otherwise.

Then in main() write loop that calls this function for every character in ADFG using a word from the text file as str.

Since ADFG is a string, you can use strlen to determine how many time to call this function. You can also use strlen inside the function to determine how many characters are in the string to be searched.

Embed this loop inside a larger loop that reads the text file word by word.

And there it is...

BTW: I can't just write the code for you but I can help with code you write. Keep me posted.

[dafrancesko]

Here is my code <weaknessforcats>
When I run it, there will appear infinite (null)(null)(null)...