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@safe unittest
{
import std.math.remainder;
import std.math.operations : feqrel;
import std.math.traits : isIdentical, isNaN;
assert(isIdentical(fmod(0.0, 1.0), 0.0));
assert(fmod(5.0, 3.0).feqrel(2.0) > 16);
assert(isNaN(fmod(5.0, 0.0)));
}
@safe unittest
{
import std.math.remainder;
import std.math.operations : feqrel;
real frac;
real intpart;
frac = modf(3.14159, intpart);
assert(intpart.feqrel(3.0) > 16);
assert(frac.feqrel(0.14159) > 16);
}
@safe @nogc nothrow unittest
{
import std.math.remainder;
import std.math.operations : feqrel;
import std.math.traits : isNaN;
assert(remainder(5.1, 3.0).feqrel(-0.9) > 16);
assert(remainder(-5.1, 3.0).feqrel(0.9) > 16);
assert(remainder(0.0, 3.0) == 0.0);
assert(isNaN(remainder(1.0, 0.0)));
assert(isNaN(remainder(-1.0, 0.0)));
}
@safe @nogc nothrow unittest
{
import std.math.remainder;
import std.math.operations : feqrel;
int n;
assert(remquo(5.1, 3.0, n).feqrel(-0.9) > 16 && n == 2);
assert(remquo(-5.1, 3.0, n).feqrel(0.9) > 16 && n == -2);
assert(remquo(0.0, 3.0, n) == 0.0 && n == 0);
}
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