Assertion.approxEqual

Asserts that a float type is aproximated equal. Returns the valued wrapped around the assertion

struct Assertion(T)

@trusted

approxEqual

(

U = double

)

(

U maxRelDiff = CommonDefaultFor!(T, U)

string file = __FILE__

size_t line = __LINE__

)

if (

is(T : real) &&

__traits(isFloating, T)

is(U : real)

__traits(isFloating, U)

)

Parameters

other U: Value to compare to compare.
maxRelDiff U: Maximum allowable relative difference. Setting to 0.0 disables this check. Default depends on the type of other and the original valie: It is approximately half the number of decimal digits of precision of the smaller type.
maxAbsDiff U: Maximum absolute difference. This is mainly usefull for comparing values to zero. Setting to 0.0 disables this check. Defaults to 0.0.
file string: filename
line size_t: line number inside of file

double d = 0.1;
double d2 = d + 1e-10;
d.should.not.be.equal(d2);
d.should.be.approxEqual(d2);