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the ARM program for lpc2148 basic program.that is an warning for last line of file ends without a new line.
the program code for this
The warning means exactly what it says, "last line of file ends without a newline". The solution is to edit the file so that it ends with a newline.
Open the file in the editor.
Place the cursor at the end of the last line.
Type [Enter] (to add a newline).
Save the file and recompile.
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So i have a loop which itterates through this encrypted text file. It then decrypts the letter and adds that new letter to a decrypted text file. only problem is that it is backwards.
So instead of lets say "Hello my name is John", the text file looks like this "nhoJ si eman ym olleH"
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I'm new to flex and bison and i couldn't figure it out. I want to read a file. This is okey for now. But while bison/flex parse and read file, I want to make it wait for new input and get it from command line. Is there a keyword or way to do it?
I tried abort yyparse() with yyerror() and get input by scanf(). But it didn't work. It doesn't wait for input and goes on.
I did a project school named mini_shell and what we asked to do was to code something like bash.
the main thing was to wait for user input and execute the command he entered, you can do that by a function named.
char *readline(const char *prompt); (you can read the man page to understand more https://man7.org/linux/man-pages/man3/readline.3.html) but I think you need to install it first before you can use it, you can find a lot of tutorials explaining how to do that based on your OS.
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I know it is not recommended to post code as an image, since I am getting a formatting error when trying to post code on here. Anyway, I am trying to write a simple C program to count number of words, characters, newlines using do while loop. However, the output is not as expected. Please help!
Instead of a do-while, you should try using while. Since your code starts off by checking whether a is any of your if cases, it goes to the else case, and increments the New line variable. If possible, could you share the output screen.
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I'm not able to terminate input for a lex program even after pressing ctrl D it just keeps going on!
What might be wrong? I am using flex compiler for Windows.
On Windows:
You need Ctrl+Z then Enter instead of Ctrl+D, which is available in Unix and Linux (on Linux just Ctrl+D will work)
Note: Both work on empty lines, so after entering any text, press Enter to go to next line (which will be empty), then these key combos will be effective.
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I am writing a character device driver in C for Linux and have run into a problem where my module_write function is being called repeatedly. What could be causing this?
Attached is a screenshot of the command used to write to the device file and the kernel log output
As you can see, it looks as though the module_write function is being called repeatedly. It doesn't matter how I write to the file (I tried using vim, echo and tee)
Source: https://gist.github.com/SamTebbs33/8ed6a1d165fae1ca27fff5b495d04797
You keep saying that 0 bytes were successfully written, so the program keeps trying to write its three bytes.
You should instead be returning the number of bytes you processed successfully from the buffer.