problem with fwrite

[CPallini]

How can you see the file pointer advancing? How many HOTKEY items did you successfully write (i.e. Did you check temp value? Did you check fwrite return value?)? :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

[Cadimi]

when debuging, just watch for the file pointer, so, I can see fout increase the value, I write 1 or 2 HOTKEY to try, but the content no change. When I read the file, the value is 0 >.<

[CPallini]

Cadimi wrote:

I write 1 or 2 HOTKEY to try

But then do you close the file?

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

[Cadimi]

as you can see in the code, I closed it, and before closed it, I fflush( fout ) carefully :D

[CPallini]

Yes, I saw the code, anyway I was referring to you debugging actions (i.e. I didn't know if you stopped the program after few write operations). The reason behind my questions is I cannot believe fwrite silently failing, it never happened to me. Can't you isolate the failing piece of the writing routine and run it in a simpler context (for instance another, adhoc, project)?

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke

[Cadimi]

thanks for your help, that's the worse thing I've ever met >.<

[David Crow]

Cadimi wrote:

FILE *fout = fopen( "config.pcm", "wb" );

Are you using a relative path? What is the value of temp?

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[Cadimi]

temp is the number of hotkeys, its value is the size of the vector contain my HOTKEY struct

[David Crow]

Cadimi wrote:

temp is the number of hotkeys, its value is the size of the vector contain my HOTKEY struct

I know what it represents. I asked what its value was (at the time of writing to the file).

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[Cadimi]

I tried a simple example, its value at that time is 1

[David Crow]

Ok, what do the two subsequent calls to fwrite() return?

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[Cadimi]

I just watch the file pointer, it increase the value equal to the size I've requested to write on file

[David Crow]

But what do the two subsequent calls to fwrite() return?

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne

[Cadimi]

I've found my problem :D... It happened when I ust CFileDialog in another code, select a path, then the default directory change too => write file at another place => can't read. Thanks for your help

[David Crow]

Cadimi wrote:

...can't read.

Which is why I was asking if fopen() was failing.

"Love people and use things, not love things and use people." - Unknown

"To have a respect for ourselves guides our morals; to have deference for others governs our manners." - Laurence Sterne