Where is the printf body defined?

[jeniffer]

Stdio.h just has the declaration of printf function.Where is the body
of printf function defined?

 

[Mike Wahler]

Stdio.h just has the declaration of printf function.Where is the body
of printf function defined?

In the standard library implementation that
gets linked with your application code.
Some vendors provide its source code, others
do not. But note that many of the library
functions are necessarily platform-specific
(e.g. the code will directly address particular
hardware types such as video controllers, etc.,
and won't be portable to other platforms.)

-Mike

 

[Joe Smith]

In the standard library implementation that
gets linked with your application code.
Some vendors provide its source code, others
do not. But note that many of the library
functions are necessarily platform-specific
(e.g. the code will directly address particular
hardware types such as video controllers, etc.,
and won't be portable to other platforms.)

I just accidentally stepped into printf. All you want to do there is step
out of the assembly if your implementation looks like mine. Be aware of the
return value == # of printed chars. joe