To avoid this problem in future, maybe we should define a macro in
<simgear/compiler.h>. Something like:
#ifdef SG_NO_INCLASS_MEMBER_INITIALIZATION
# define SG_STATIC_CONSTANT(type, assignment) enum { assignment }
#else
# define SG_STATIC_CONSTANT(type, assignment) static const type
assignment
#endif
Usage then becomes:
class Foo {
SG_STATIC_CONSTANT(int, FG_MAX_ENGINES = 4);
...
}
which expands to either
static const int FG_MAX_ENGINES = 4;
or
enum { FG_MAX_ENGINES = 4; };
I think the problem with Norman's solution is that you can't use the
value later in the class declaration, as an array size for example.
Cheers,
Bernie
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