a.out remains unchanged

[muthus]

Hello,

I am writing a C program on Ubuntu Linux. I compile using the gcc compiler. I was making changes and compiling the program and a.out was reflecting the new changes. After a few hours, I am observing that any changes I make to the program are not getting reflected in my a.out. It seems to show me the same output that I got sometime ago. Even an extra print statement does not show up. Not sure if I need to do some sort of flush here. My program uses arrays and pthread calls.

Any input on this will be greatly appreciated.

Thanks

[Aia]

Deleting that a.out file, or giving it another name to the compiled file will troubleshoot better what the problem is.

[muthus]

Hello thanks but I have tried both options, without any luck

[laserlight]

Do you experience the same problem with a hello world program?

[muthus]

yes. for any program I write, I get the same old output of a different program even after attempting to
1. deleting a.out
2.renaming the file
3.rebooting the system.

[Doodle77]

are you deleting it using rm or using the trash?
Do you have write permission on the file?

[laserlight]

What command did you run at the command line to compile the program? Do you place each program's source code in a separate directory to avoid confusion?

[muthus]

I am deleting it using the rm command. I make sure there is is not there before re-compiling it. But the new a.out file that gets created still shows the output from a different program I ran earlier.

[muthus]

I am compiling a simple 'hello world' the program using the following command

gcc filename.c

I made sure I have write permissions on a.out and the directory. I have each source in a separate directory to avoid confusion.

Yet, the a.out output I see is from a different program.

I deleted a.out using the rm command

[tabstop]

I am compiling a simple 'hello world' the program using the following command

gcc filename.c

I made sure I have write permissions on a.out and the directory. I have each source in a separate directory to avoid confusion.

Yet, the a.out output I see is from a different program.

I deleted a.out using the rm command

If you type "which a.out", what do you see? Do you see the a.out in your hello world directory, or a different one?

[muthus]

I am seeing a different one. I see the one in /usr/bin. But, I worked around this problem by directing the output to a file different that a.out

[tabstop]

I am seeing a different one. I see the one in /usr/bin. But, I worked around this problem by directing the output to a file different that a.out

OK, then. Just remember that your current directory is not in your path (or high up in your path), so to run a file where you are you can do "./a.out" (in other words, giving a directory as well as a file name).

[muthus]

Got you. Thanks a lot.

[Salem]

Seems a little odd that you have an a.out in /usr/bin.

Perhaps investigate how it got there. Is it one of yours you've moved there accidentally?

[muthus]

Agree. Will do some investigation. Thanks.