problem using C++ classes with AIX xlc Version 5.0

[ChrisG]

Hi,

I am building an executable on a bunch of UNIX platforms. It works on
all the other ones
(HP, Linux, SUN, SGI) but fails to run on Aix with xlc compiler version
5.0. The problem
is that the default constructors of my global objects are not called on
this platform. So
I declared my global object as

SymbolTable globalSymTab ;

and SymbolTable.cpp has

SymbolTable::Sy mbolTable ()
: m_curId (0),
m_htab (hTabSize),
m_offStr (0),
m_type (0) {
}

while SymbolTable.hpp has

class SymbolTable {

public:

SymbolTable ();
...
}

But the constructor SymbolTable::Sy mbolTable () is never called. Could
anyone give
me some suggestions on this problem?

Thanks in advance,
Chris

[Thomas Tutone]

Re: problem using C++ classes with AIX xlc Version 5.0


ChrisG wrote:[color=blue]
> Hi,
>
> I am building an executable on a bunch of UNIX platforms. It works on
> all the other ones
> (HP, Linux, SUN, SGI) but fails to run on Aix with xlc compiler version
> 5.0. The problem
> is that the default constructors of my global objects are not called on
> this platform. So
> I declared my global object as
>
> SymbolTable globalSymTab ;
>
> and SymbolTable.cpp has
>
> SymbolTable::Sy mbolTable ()
> : m_curId (0),
> m_htab (hTabSize),
> m_offStr (0),
> m_type (0) {
> }
>
> while SymbolTable.hpp has
>
> class SymbolTable {
>
> public:
>
> SymbolTable ();
> ...
> }
>
> But the constructor SymbolTable::Sy mbolTable () is never called. Could
> anyone give
> me some suggestions on this problem?[/color]

Hard to tell without more info. Given that you are using global
variables and your code works on some platforms but not others, It is
possible that you are falling victim to the static initialization order
fiasco - in which case, you will find the following FAQ entries
helpful:

http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.12

Best regards,

Tom