internal compiler error (ambigous type conversion)

[Martin von Loewis]

> Please check this out.

With the current egcs, this seems to work fine, and reports

a.ii: In function `int main()':
a.ii:16: conversion from `b' to `a' is ambiguous
a.ii:4: candidates are: b::operator a()
a.ii:9:                 a::a(b)


Regards,
Martin