I am following a book on C++ programming and I got stuck on vectors. The example from the book goes:
vector<int> v = {1,2,3};
but I'm getting an error:
1 IntelliSense: no instance of constructor "Vector<T>::Vector [with T=int]" matches the argument list
argument types are: (int, int, int) ../path
Also, when I create string vector:
vector<string> v = {"one", "two", "three"}
I get this error:
1 IntelliSense: no instance of constructor "Vector<T>::Vector [with T=std::string]" matches the argument list
argument types are: (const char [4], const char [4], const char [6]) ../path
I am using VS 2013 with Nov 2013 CTP compiler. What am I doing wrong?
To summarize and expand upon what was written in the comments and Bjarne Stroustrup's "std_lib_facilities.h" header:
- The header contains a trivially range-checked vector class called
Vector for teaching purposes;
To make Vector a "seamless" replacement for vector in the standard library (again, for teaching purposes), the header contains the following lines:
// disgusting macro hack to get a range checked vector:
#define vector Vector
- The OP likely used the header for the first edition of the book (it's the top Google search result for
std_lib_facilities.h), whose Vector doesn't have an initializer_list constructor (that edition uses C++98, which doesn't have initializer lists).
- As a result, the compiler complains that
Vector doesn't have a matching constructor when it sees vector<int> v = {1,2,3};, which becomes Vector<int> v = {1,2,3}; after macro replacement.
To fix the problem, download and use the correct version of the header.
Try to #include <string> to define string.
And using namespace std;
The last line lets you skip std:: infront of stuff.
