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Re: passing reference to reference to variable from ObjC++ to method of C++ class
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Re: passing reference to reference to variable from ObjC++ to method of C++ class


  • Subject: Re: passing reference to reference to variable from ObjC++ to method of C++ class
  • From: David Leimbach <email@hidden>
  • Date: Thu, 11 Dec 2003 08:39:43 -0600

Also if your function takes a reference to a char it is no where near the same
as a pointer to a char. References are bound to some address and act like
aliases and can't be moved once set.

That said I must confess I haven't done much with char * & to be able to really
help further but it might provide a hint and since you say this is a reference to
reference to variable in the subject I am somewhat confused as to what you mean.

Dave
On Dec 11, 2003, at 6:40 AM, Alexander Spohr wrote:

hm.. just an idea:

try passing &name (and receiving it on the other side as char ** or char *[]).

a char[] is NOT exactly working like a char*.
yes, it generaly is a pointer to the first char, but if you pass it to a function it might be that the comiler tries to copy the contents, instead of just giving the pointer to the function.

did you try to pass a malloced char*?

atze


Am 11.12.2003 um 11:29 schrieb Shashikant Hire:

Hello

Is it possible to pass reference to char array from ObjC++ code to method of
C++ object?

For example

char name[512];

cppObj = new CppClass();
cppObj->setName(name);

After debugging using GDB I found that reference to name is null. Cpp
library is CFM-based.

SBH
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References: 
 >passing reference to reference to variable from ObjC++ to method of C++ class (From: "Shashikant Hire" <email@hidden>)
 >Re: passing reference to reference to variable from ObjC++ to method of C++ class (From: Alexander Spohr <email@hidden>)

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