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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.
If fun is not a string, binaryFunfun.
Arguments
template binaryFun(alias fun, string parm1Name, string parm2Name);
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"));