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Template `std.functional.binaryFun`

Transforms a string representing an expression into a binary function. The string must either use symbol names a and b as the parameters or provide the symbols via the parm1Name and parm2Name arguments.


						
				template binaryFun(alias fun, string parm1Name = "a", string parm2Name = "b")
				;

Contained Functions

Name	Description
binaryFun

Parameters

Name	Description
fun	a `string` or a callable
parm1Name	the name of the first parameter if `fun` is a string. Defaults to `"a"`.
parm2Name	the name of the second parameter if `fun` is a string. Defaults to `"b"`.

Returns

If fun is not a string, binaryFun aliases itself away to fun.

Example

alias less = binaryFun!("a < b");
assert(less(1, 2) && !less(2, 1));
alias greater = binaryFun!("a > b");
assert(!greater("1", "2") && greater("2", "1"));

Authors

Andrei Alexandrescu

License

Boost License 1.0.