garbage value with sprintf

[idrissmc]

hi everyone,

Can someone tell me if sprintf is ok in Keil? Tera term prints garbage value.

2 days ago I tried sprintf and it didn't work, I tried a simple declaration of a string and it worked.

what's the problem?

[idrissmc]

It's ok, I found it :D

[Piranha]

You must provide an array to it, not uninitialized pointer.

Also take a note that sprintf() is unsafe, because it isn't aware of output buffer size. Better use snprintf().