Override functions (Migrating C++ source from Microsoft Windows NT to SCO Unix)

[Timothy_Ko at nag dot national dot com dot au]

Hi,

I get around the "__int64" by using extra coding "#ifdef UNIX"  with replacing
"__int64" to "long" .

However, the problem with "sstream: No such file or directory" still exists,
although <iostream>, <fstream>, <string> used without complaint.

On the other hand, on the orginal source in NT, we have a NabString class which
override isalnum function by

public:
     virtual const bool NabString::isalnum() const;

that was working in NT.

but in Unix, g++ returns

     NabString.h:622: macro `isalpha' used without args

I works if I rename the function to something else,  but this is not what we
want.

Thanks

Tim

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