qBound: compile error with some parameter combinations

these statements compile:

qBound(0.0, 0.5, 1.0);
qBound(0.0, 0.5f, 1.0);
qBound<float>(0, 0.5f, 1);

however this does not compile:

qBound<float>(0.0, 0.5f, 1.0);
qBound(0, 0.5, 1);
qBound(0, 0.5f, 1)

furthermore the documentation only states the signature:

template <typename T> const T &qBound(const T &min, const T &val, const T &max)

while we have implementations of different signatures (which cause the above compile errors due to ambiguities).

ideally we'd have the expected behaviour that:

• qBound(a, b, c) would return decltype(b)
• qBound<T>(a, b, c) would ensure a return type of T