[comp.lang.c++] new for array of int

robert@ireq.hydro.qc.ca (R.Meunier 8516) (06/19/91)

	I'm looking for a way to allocate an array of integer (or
any other type) using the operator new. I thought that the
following line would have create an array of 10 element
but found out looking at the c code generated that 10 was 
assigned to the int.

maint()
{
	int *i;

	i = new int(10);
}

	this is the c code after cfront

----------------------------------------------------------------------
/* <<AT&T C++ Translator 2.00.02 08/25/89>> */
/* < int.cc > */

char *__vec_new ();

char __vec_delete ();
typedef int (*__vptp)();
struct __mptr {short d; short i; __vptp f; };

extern char *__nw__FUi ();

int main (){ _main(); 
{ 
int *__1i ;

{ 
int *__0__N1 ;

__1i = ( ( (__0__N1 = (((int *)__nw__FUi ( sizeof (int )) ))), (((*__0__N1 ))= 10 )) , __0__N1 );
} 
}

} 
----------------------------------------------------------------------

	Do i have to create an Int class?


PS  i couldn't find anything int the ARM!
-- 
Robert Meunier                     Institut de Recherche d'Hydro-Quebec
Ingenieur                          1800 Montee Ste-Julie, Varennes
Internet: robert@ireq.hydro.qc.ca  Qc, Canada, J3X 1S1 
maintainer: BASIC mailing list request to basic-request@ireq.hydro.qc.ca

hitz@csi.uottawa.ca (Martin Hitz) (06/19/91)

In article <7525@s3.ireq.hydro.qc.ca> robert@ireq.hydro.qc.ca () writes:
>	I'm looking for a way to allocate an array of integer (or
>any other type) using the operator new. I thought that the
>following line would have create an array of 10 element
>but found out looking at the c code generated that 10 was 
>assigned to the int.
>
>maint()
>{
>	int *i;
>
>	i = new int(10);
>}

While the correct form to allocate an array would be

	i = new int[10];
	
the one used here initializes a newly allocated singleton with
the argument to the pseudo-constructor-call.

Martin Hitz@csi.uottawa.ca