import std.math.constants : E;
import std.math.operations : isClose;
import std.math.traits : isIdentical;

enum sinh1 = (E - 1.0 / E) / 2;
import std.meta : AliasSeq;
static foreach (F; AliasSeq!(float, double, real))
{
    assert(isIdentical(sinh(F(0.0)), F(0.0)));
    assert(sinh(F(1.0)).isClose(F(sinh1)));
}