question: DLD write and debug

[Eric Chassande-Mottin]

hi all,

two questions about DLD C++ writing and debugging.

1) in gdb, how do get the values of a vector (ColumnVector or RowVector)

or of a Matrix when I am debugging a DLD?

foo.cc:

[...]
ColumnVector x(10);
[...]

i tried

print x
print x(1)
print x.data(1)

but I can only get the address pointing on the struct.

2) what happens if I declare C++ (not Octave) global variables in a DLD?

i.e., if I declare a variable _before_ starting any function, like:

static double x=0.0;

DEFUN_DLD (foo, args, ,
  "blablabla\n")
{
[...]
}

can I realibly use x in all functions declared in the file?

or should I avoid that? (if yes, why?)

does that interfere with Octave's workspace ?

thanks, é.





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