https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110689
Bug ID: 110689
Summary: problem of initializer list
Product: gcc
Version: 4.8.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: irip at qq dot com
Target Milestone: ---
In the code, declare a struct/class and define multiple types of list
initializers, then use list initializers, such as:
struct M {
operator char() { return 'a'; }
} m;
struct S {
S(std::initializer_list<int>) { flag = 1; }
S(std::initializer_list<float>) { flag = 2; }
};
……
S s = { m };
Compiler error:
conversion from '<brace-enclosed initializer list>' to 'S' is ambiguous
This is allowed in the C++ standard and requires overloaded parsing when the
list is initialized.
