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Top Forums Programming c++ object constructor question Post 302433176 by santiagorf on Monday 28th of June 2010 10:30:00 PM
Old 06-28-2010
Quote:
Originally Posted by Corona688
I don't see any similarity in design or inheritance between what you're trying to do and and the example you quote... I don't think the constructor is what lets it do that, are you sure that's the complete code? No external operator functions? Also: You can't cast one value into two values.
The code is taken from:
PHP Code:
http://newdata.box.sk/bx/c/htm/ch15.htm 
see listing 15.1 and 15.2. Most of the code is exactly the same as the one I posted with the exception of the main function. According to the book -and I debugged it in order to verify it- this behavior is due to the constructor from String.
 

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ost::AppLog::Ident(3)					     Library Functions Manual					     ost::AppLog::Ident(3)

NAME
ost::AppLog::Ident - Ident class that represents module name. SYNOPSIS
#include <applog.h> Public Member Functions Ident () Constructor. ~Ident () Desctructor. Ident (Ident &id) Copy constructor. Ident (const char *str) const char* constructor, provided for convenience. std::string & str () std::string cast. Ident & operator= (std::string &st) Assignment operator (string). Ident & operator= (const char str[]) Assignment operator (const char[]), provided for convenience. const char * c_str () const char* cast provided for conveneince. Detailed Description Ident class that represents module name. Constructor &; Destructor Documentation ost::AppLog::Ident::Ident () [inline] Constructor. ost::AppLog::Ident::~Ident () [inline] Desctructor. ost::AppLog::Ident::Ident (Ident &id) [inline] Copy constructor. ost::AppLog::Ident::Ident (const char *str) [inline] const char* constructor, provided for convenience. Member Function Documentation const char* ost::AppLog::Ident::c_str () [inline] const char* cast provided for conveneince. Referenced by ost::AppLog::operator()(), and ost::AppLog::operator<<(). Ident& ost::AppLog::Ident::operator= (std::string &st) [inline] Assignment operator (string). Ident& ost::AppLog::Ident::operator= (const charstr[]) [inline] Assignment operator (const char[]), provided for convenience. std::string& ost::AppLog::Ident::str () [inline] std::string cast. Author Generated automatically by Doxygen for GNU CommonC++ from the source code. GNU CommonC++ Sat Jun 23 2012 ost::AppLog::Ident(3)
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