CODEWITHSUNDEEP
c++
jpints14
jpints14

Reputation: 1371

ISO C++ says that these are ambiguous

I am getting the error:

ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second:

Distribution.H:515: note: candidate 1: Probability Normal::cdf(float64_t) const

Distribution.H:512: note: candidate 2: Probability Normal::cdf(const RationalVector&)"

RationalVector is defined as 

class RationalVector : public Array<float64_t>

I am not able to change this class or the 'cdf' functions, as they are part of a third-party library. My code is giving the error for the following line:

return cABS*( exp(Md + 0.5*Vd)*stdN.cdf(d1) - K*stdN.cdf(d2) );

Where d1 and d2 are both doubles. I have tried casting both of them to float64_t to force the use of the first cdf function as such:

return cABS*( exp(Md + 0.5*Vd)*stdN.cdf((float64_t)d1) - K*stdN.cdf((float64_t)d2) );

However, the error still persists.

The Normal functions are defined as:

Probability cdf(float64_t x) const;
Probability cdf(RationalVector const & x);

Any ideas as to what the issue is, or how to fix it?

Upvotes: 0

Views: 1550

Answers (1)

Maxim Egorushkin
Maxim Egorushkin

Reputation: 136256

The second overload misses const, this may be the reason for ambiguity.

Try making stdN a const object if you intend to invoke the first overload.

Upvotes: 1

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