Rene Girard wrote:
double g1(double, double *);
I would like to bring to your attention that when I
compile that simple example and
I set the pointer to the function from we want to have
the derivative with the following
statement:
f.function = &g1; (like in the example in Chap. 27)
I get the following warning:
"warning: assignment from incompatible pointer type"
to remove the warning I had to cast the pointer as
follow:
f.function = (double (*) ()) &g1;
Hello,
Thanks for your email. I think your warning can be avoided without a
cast by using the prototype double g1(double, void *) which matches the
definition in GSL. Otherwise, the appropriate cast would be (double
(*)(double, void *)). See the header file gsl_math.h for the definition
of the gsl_function type.
--
best regards,
Brian Gough
(GSL Maintainer)
Network Theory Ltd,
Publishing the GSL Manual - http://www.network-theory.co.uk/gsl/manual/
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