handling of return values

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1 total messages Started by Mark Grand Sat, 13 Apr 1991 19:47

#1015

Author: Mark Grand
Date: Sat, 13 Apr 1991 19:47

35 lines
1490 bytes

My understanding of the semantic of the return statement is that the
expression following return is evalated, a copy of the value is
created using the appropriate copy constructor and the copy is
returned.  My question involves the circumstance

        extern MyObj foo();
                ...
        foo();

What becomes of the return value?  Borland C++ waits until it reaches
the end of the scope enclosing the call to foo() before calling the
destructor for its return value.  If a destructor is to be called then
when.  In a case such as

        extern MyObj foo();
                ...
      loop:
        foo();
                ...
        goto loop;

will a destructor be called for every value returned by foo()?
--
========

Mark Grand
Premenos Corporation                415-602-2073
1000 Burnett Avenue, Suite 200
Concord, CA   94520                 ...!attmail!premenos
				    ...!{sun, ames, att}!pacbell!premenos!mark
-- 
========

Mark Grand
Premenos Corporation                415-602-2073

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