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Enum member std.traits.isSomeFunction
Detect whether symbol or type T
is a function, a function pointer or a delegate.
enum isSomeFunction(alias T) = is(T == return) || is(typeof(T) == return) || is(typeof(&T) == return);
Parameters
Name | Description |
---|---|
T | The type to check |
Returns
A bool
Example
static real func(ref int) { return 0; }
static void prop() @property { }
class C
{
real method(ref int) { return 0; }
real prop() @property { return 0; }
}
auto c = new C;
auto fp = &func;
auto dg = &c .method;
static assert( isSomeFunction!func);
static assert( isSomeFunction!prop);
static assert( isSomeFunction!(C .method));
static assert( isSomeFunction!(C .prop));
static assert( isSomeFunction!(c .prop));
static assert( isSomeFunction!fp);
static assert( isSomeFunction!dg);
real val;
static assert(!isSomeFunction!int);
static assert(!isSomeFunction!val);
Authors
Walter Bright,
Tomasz Stachowiak (isExpressions
),
Andrei Alexandrescu,
Shin Fujishiro,
Robert Clipsham,
David Nadlinger,
Kenji Hara,
Shoichi Kato
License
Copyright © 1999-2025 by the D Language Foundation | Page generated by ddox.