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Alias std.traits.ParameterDefaults
Get, as a tuple, the default value of the parameters to a function symbol.
If a parameter doesn't have the default value, void
is returned instead.
alias ParameterDefaults(func...)
= Impl!();
Example
int foo(int num, string name = "hello", int[] = [1,2,3], lazy int x = 0);
static assert(is(ParameterDefaults!foo[0] == void));
static assert( ParameterDefaults!foo[1] == "hello");
static assert( ParameterDefaults!foo[2] == [1,2,3]);
static assert( ParameterDefaults!foo[3] == 0);
Authors
Walter Bright,
Tomasz Stachowiak (isExpressions
),
Andrei Alexandrescu,
Shin Fujishiro,
Robert Clipsham,
David Nadlinger,
Kenji Hara,
Shoichi Kato
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.