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help with opening files and reading them in C

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# 8  
Old 02-10-2011
The script (apart from changing str_len to strlen) seems to work - such as it is.

Knowing nothing about the format of this "words" file, do you not think that allocating ten characters to each word is maybe on the stingy side (char line[11];?
# 9  
Old 02-10-2011
well i dont want to give a fixed number of allocating, as the string could be any length, and the str_len is my own function that gives the length of the string, excluding the \0 and \n at the end, so still i dont know whats wrong. if i loop through the word list and print the lines normally, it comes out right.....
# 10  
Old 02-10-2011
And what, exactly, does you own str_len function give you thats greater than what fgets will read?

You gave a "fixed number of allocating" when you wrote char line[11].

It seems clear that you would get "extra blank lines" where you have ten-character words:

Code:
$ cat file1
1234567890
12345678901

$ ./main   
1234567890
10 1


1 2
1234567890
10 3
1

2 4

# 11  
Old 02-10-2011
ok changing that 11 to 30 fixed it, but now after i do that i get some kind of error that never happened before
Code:
*** stack smashing detected ***: ./myprog terminated
======= Backtrace: =========
/lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x48)[0xb7e7b238]
/lib/tls/i686/cmov/libc.so.6(__fortify_fail+0x0)[0xb7e7b1f0]
./myprog [0x8048cfd]
[0xb7000000]

# 12  
Old 02-10-2011
You used 11 in two places. Did you change it in both?
# 13  
Old 02-10-2011
haha thanks that fixed it.

but the only thing bugging me is that i changed it to 30, assuming the biggest string is 30 bytes, is there no generalised way to allocate the size of the biggest string or something?, like what if a string thats more then 30 comes up?
# 14  
Old 02-10-2011
What's the biggest word in the dictionary?

Google it Smilie

Would it hurt just to make it 1000? It's not like you're storing every word in the dictionary - you're getting them one at a time.
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