Is Private Within This Context C
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Inheritance and "private within context"
class Worker
{
public :
Position p;
double salary;
...
private :
....
};
class Employee : public Worker
{
public :
...
private :
...
};
class Worker
{
public :
enum Position { EMPLOYEE, BOSS };
Worker(Position p) : p(p) {}
private :
Position p;
double salary;
};
class Employee : public Worker
{
public :
Employee() : Worker(EMPLOYEE) {}
private :
};
int main()
{
Employee e;
}
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class Worker
{
private: // implicit here, but stated for clarity
Position p;
double salary;
...
public:
Worker (Position pos, double sal)
{ p = pos; salary = sal; } // Initialize Worker's private members
};
class Employee : public Worker
{
public :
Employee (Position pos, double sal);
...
private :
...
};
...
// Create an employee
Employee * emp;
emp = new Employee(worker, 10.00);
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I might be a little off topic but the experience level here is enough
to give me solid guidance.
So here's the code:
#ifndef FOO_TEST_H
#define FOO_TEST_H
#include
#include
#include
#include
#include
#include
#include
#include
namespace foo {
class foo_test {
typedef std::deque< std::string > bucket;
bucket data;
bool bit;
void push_back ( std::string & str ) {
data.push_back( std::string() );
data.back().swap( str );
}
void mark ( void ) {
bit = true;
}
template < typename C, typename S >
struct io
{
static
foo_test & in ( foo_test & ft, S const & data )
{
std::stringstream in;
if ( in << data ) {
std::string str = in.str();
ft.push_back( str );
} else {
ft.mark();
}
return ( ft );
}
};
foo_test & operator<< ( int const & data ) {
return( io::in( *this, data ) );
}
template < typename T >
static
void enlist ( std::string id = typeid(T).name() )
{
// stuff
}
public :
foo_test ()
: bit ( false ) {}
};
};
#endif
I'm _stuck with gcc 2.96_ for now. That said, the complaints when I
try to compile are as follows:
ccppc -g -mcpu=604 -mstrict-align -ansi -fno-builtin -I.
-IC:\Tornado2.2.1\target\h\ -DCPU
=PPC604 -DTOOL_FAMILY=gnu -DTOOL=gnu -c ..\main.cpp
In file included from ..\main.cpp:2:
...\fooTest.h: In function `static class foo::foo_test &
foo::foo_test::io::in
(foo::foo_test &, const int &)':
...\fooTest.h:728: instantiated from here
...\fooTest.h:701: `void foo::foo_test::push_back(string &)' is private
...\fooTest.h:719: within this context
...\fooTest.h:706: `void foo::foo_test::mark()' is private
...\fooTest.h:721: within this context
...\fooTest.h:734: sorry, not implemented: `method_call_expr' not
supported by dump_expr
make: *** [main.o] Error 0x1
Done.
------------------------
offending line (1):
return( io::in( *this, data ) );
The question: Why would the push_back and mark methods be considered
private 'in this context'?
The answer might be it's a gcc 2.96 bug but jsut wanting to ensure it's
not something I'm doing wrong.
offending line (2):
void enlist ( std::string id = typeid(T).name() )
I dont understand the 'method_call_expr' just yet but the error
"sorry, not implemented: `method_call_expr' not supported by dump_expr"
is also a mystery.
++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++
The work around:
1) add public before 'bucket data'.
public:
bucket data;
2)
template < typename T >
static
void enlist ( std::string id )
{
id = typeid(T).name();
// stuff
}
Workaround 2 I could live with. Workaround 1 bothers me. Ideas?
Thanks in advance
ma740988 wrote:
I might be a little off topic but the experience level here is enough
to give me solid guidance.
Use other (newer) compilers to check your code when in doubt. It's not
a completely fool-proof method, but it often works well.
So here's the code:
#ifndef FOO_TEST_H
#define FOO_TEST_H
[...]
namespace foo {
[...]
};
The semicolon after the closing brace the defines the namespace
is the only violation of C++ rules in your code.
#endif
I'm _stuck with gcc 2.96_ for now. That said, the complaints [...]
The question: Why would the push_back and mark methods be considered
private 'in this context'?
You would have to ask g++ people.
The answer might be it's a gcc 2.96 bug but jsut wanting to ensure
it's not something I'm doing wrong.
You're not doing anything wrong *except* using a _very_old_ compiler.
V
--
Please remove capital As from my address when replying by mail
You're not doing anything wrong *except* using a _very_old_ compiler.
Appreaciate it.
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Is Private Within This Context C
