asymptote: Default arguments
6.11.1 Default arguments
------------------------
'Asymptote' supports a more flexible mechanism for default function
arguments than C++: they may appear anywhere in the function prototype.
Because certain data types are implicitly cast to more sophisticated
types (
Casts) one can often avoid ambiguities by ordering
function arguments from the simplest to the most complicated. For
example, given
real f(int a=1, real b=0) {return a+b;}
then 'f(1)' returns 1.0, but 'f(1.0)' returns 2.0.
The value of a default argument is determined by evaluating the given
'Asymptote' expression in the scope where the called function is
defined.
Info Catalog
asymptote: Functions
asymptote: Functions
asymptote: Named arguments