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Full Discussion: shared pointers
Top Forums UNIX for Advanced & Expert Users shared pointers Post 302299881 by uunniixx on Saturday 21st of March 2009 11:56:27 PM
Old 03-22-2009
I would like to modify and clarify my point here

I have a class in which constructor I have declared a member variable as 0. Now I am using a shared pointer to access object created in heap. So incase if we create another instance of the class will there only be one instance of the class but two shared pointers or two instances of class.

My interest is the class constructor is initializing the member variable to 0. Now before the second instance is created that member variable is incremented. So when the second call is made will the first instance see the value of x as 0?

Please confirm
 

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LEARN ABOUT OSX

dh_compute_key

DH_generate_key(3)						      OpenSSL							DH_generate_key(3)

NAME

       DH_generate_key, DH_compute_key - perform Diffie-Hellman key exchange

SYNOPSIS

	#include <openssl/dh.h>

	int DH_generate_key(DH *dh);

	int DH_compute_key(unsigned char *key, BIGNUM *pub_key, DH *dh);

DESCRIPTION

       DH_generate_key() performs the first step of a Diffie-Hellman key exchange by generating private and public DH values. By calling
       DH_compute_key(), these are combined with the other party's public value to compute the shared key.

       DH_generate_key() expects dh to contain the shared parameters dh->p and dh->g. It generates a random private DH value unless dh->priv_key
       is already set, and computes the corresponding public value dh->pub_key, which can then be published.

       DH_compute_key() computes the shared secret from the private DH value in dh and the other party's public value in pub_key and stores it in
       key. key must point to DH_size(dh) bytes of memory.

RETURN VALUES

       DH_generate_key() returns 1 on success, 0 otherwise.

       DH_compute_key() returns the size of the shared secret on success, -1 on error.

       The error codes can be obtained by ERR_get_error(3).

SEE ALSO

       dh(3), ERR_get_error(3), rand(3), DH_size(3)

HISTORY

       DH_generate_key() and DH_compute_key() are available in all versions of SSLeay and OpenSSL.

50								    2013-03-05							DH_generate_key(3)
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