c++ - Ambiguous constructor between list<string> and string -

in following code, compiler gives me error when try pass list constructor:

#include <string> #include <iostream> #include <list>   class myclass {     std::list<std::string> strings;  public:     void disp() {         (auto &str : strings)             std::cout << str << std::endl;     }      myclass(std::string const &str)         : strings({str}) {}      myclass(std::list<std::string> const &strlist)         : strings(strlist) {} };   int main () {     // compiles well:     myclass c1("azerty");     c1.disp();      // compilation error, "call constructor of 'myclass' ambiguous":     myclass c2({"azerty", "qwerty"});     c2.disp();      return 0; } 

i tried add explicit constructors' declarations, doesn't change anything.

the problem string has constructor:

template< class inputit > basic_string( inputit first, inputit last,                const allocator& alloc = allocator() ); 

which {"azerty", "qwerty"} unfortunate match because const char* is, in fact, input iterator... if 2 arguments aren't intended iterators , aren't iterators same container.

one solution provide single constructor takes initializer list , use one:

myclass(std::initializer_list<std::string> il)     : strings(il.begin(), il.end()) { }