[ECOS] Syntaxis

[ECOS] Syntaxis

[Rafael Rodríguez Velilla]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 694 bytes --]

  I have seen in the kapi.cxx the following code.
Cyg_Interrupt *t = new ((void *)intr) Cyg_Interrupt (
   (cyg_vector) vector,
   (cyg_priority)priority,
   (CYG_ADDRWORD)data,
   (cyg_ISR *) isr,
   (cyg_DSR *)dsr );
 t=t;

  There are a pair of things that I don't quite understand:
  new ((void *)intr) ...
  Does this mean that the object will be constructed at the address
pointed by intr?

  What is t=t; used for?

  I think that the first sentence makes "t" point to the new created
object at the address "intr". Why is it necessary to tell "t" to point
to "t"?


--
Rafael Rodríguez Velilla        rrv@tid.es
Telefónica I+D          http://www.tid.es
Telf: +34 - 91 337 4270

Re: [ECOS] Syntaxis

[Jesper Skov]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 321 bytes --]

>>>>> "Rafael" == Rafael Rodríguez Velilla <rrv@tid.es> writes:

Rafael>   What is t=t; used for?

Rafael>   I think that the first sentence makes "t" point to the new
Rafael> created object at the address "intr". Why is it necessary to
Rafael> tell "t" to point to "t"?

It silences a compiler warning, IIRC.

Jesper